Answer:
cellular respiration or oxidation reduction process is important for energy production
In which situation has heat energy moved mainly by conduction through matter?
Responses.
A: A radiator heated with hot water warms a room.
B: The red-hot coil of an electric space heater is used to keep a small room warm.
C: The handle of a cast iron skillet being used to cook something becomes too hot to touch.
D: The person sitting closest to the blazing fire finds it necessary to move farther from the heat.
When the handle of a cast iron pan being used to cook something becomes too hot to touch, heat energy is moving through matter by conduction. Therefore, option (C) is correct.
What is conduction?The movement of thermal energy through a substance (matter) as a result of physical contact is referred to as conduction. It is a significant component of the process through which heat is transmitted from one thing to another. These are some of the others:
Because the heat from the burner is transferred directly into the pot, the handle of a cast iron skillet that is being used to cook food becomes too hot to touch while the skillet is in use. The handle of the cast iron skillet will get warm as a result of the heat being transferred from the pot when it rises to a boil.
The best situation for heat energy to move mainly by conduction is when there is direct contact between the source of heat and the matter being heated. For example, the handle of a cast iron skillet that is being used to cook something becomes too hot to touch when the skillet has reached the desired cooking temperature.
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Based on the DNA sequence below, which of the species is most closely related to the unknown species?  Species 1: GTT/CCA/GAA/AAT/CCT Unknown: AAT/CCT/GAA/AAT/CCA. Species 2: ATA/CCT/GTT/AAT/GGA. O Species 1. O Species 2
Based on the DNA sequence, the species that is most closely related to the unknown species is species 1, as it has more homologies than species 2. A bigger distance can be traduced in a higher number of mutations or modifications in the DNA sequence.
The correct answer is: Species 1.
What is the shortest part of the cell cycle?
The M phase of the cell cycle is referred to as the shortest phase. The stages of a cell's life that make up the cell cycle.
The cell cycle consists of four major stages: gap 1 (G1), synthesis (S), gap 2 (G2), and mitosis (M). Occasionally, cells will also enter a stationary phase known as G0 after exiting the cell division cycle.
Mitosis is the cell cycle's shortest stage. Cells grow and perform their functions within the body for the majority of their lives during the G1 phase. The process of cell division known as mitosis takes the shortest amount of time for cells to go through. In multicellular organisms, mitosis is required for growth and repair, and in unicellular organisms, it is required for asexual reproduction.
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What are the 3 functions of the cell membrane?
Answer:
1. Cell membrane or plasma membrane is composed of a phospholipid bilayer which is semi-permeable.
2. It is responsible to regulate the transportation of materials and the movement of substances in and out of the cell.
3. Many tiny, fat-soluble molecules, such as oxygen, can pass through the membrane, while big, water-soluble molecules, such as sugar, and electrically charged ions, such as calcium, are repelled by the fatty-acid chains.
Explanation:
1. They keep toxic substances out of the cell.
2. They contain receptors and channels that allow specific molecules to pass between organelles and between the cell and the outside environment, such as ions, nutrients, wastes, and metabolic products
3. They separate vital but incompatible metabolic processes conducted within organelles.
The cell membrane plays a critical role in maintaining the integrity and shape of the cell, as well as facilitating cell signaling and communication, and transporting molecules in and out of the cell. These functions are essential for the cell to carry out its many tasks and maintain proper function.
Preserving the integrity and form of the cell: The cell membrane acts as a barrier to protect the contents of the cell from the external environment. Moreover, it aids in keeping the cell's form and stops it from collapsing or bursting. The cell membrane's phospholipid bilayer is selectively permeable, allowing only specific chemicals to flow through. This supports normal cellular activity by assisting the cell in controlling what enters and departs.Cell signalling and communication: The proteins that are a part of the cell membrane are crucial for cell signalling and communication. They play the role of receptors, able to recognise and attach to particular chemicals like hormones or neurotransmitters. This sets off a signalling cascade inside the cell, which may result in modifications to the activity of the cell. Moreover, the cell membrane enables cell-to-cell communication through the transmission of signalling chemicals like cytokines.Transporting molecules into and out of the cell: The cell membrane, as was already noted, is selectively permeable, which means that some molecules can pass through while others cannot. The movement of molecules into and out of the cell is necessary for the cell to absorb nutrients, get rid of waste, and keep the right balance of ions. Molecules are transported across the cell membrane by a number of transport modes, including passive diffusion, assisted diffusion, and active transport.For more such questions on cell membrane.
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Methods farmers use to increase crop production from their land
Explanation:
Consider these 9 tips, techniques, and methods regarding how to increase your corn crop yield
Plant Early, Plant Effectively. ...
Practice Seasonal Soil Rotation. ...
Know The Yield Potential. ...
Always Scout Your Fields. ...
Ensure Proper Water Drainage. ...
Utilize Fertilizers. ...
Test Your Soil. ...
Weed Early and Often.
Why are small, isolated populations at a particular risk of extinction? Select all accurate reasons.- Because of an increase in heterozygotes from inbreeding.- Because a single natural disaster or disease could wipe out the population.- Because they are subject to greater edge effects.- Because dispersal to and from other populations is less likely.- Because a single natural disaster or disease could wipe out the population.- Because dispersal to and from other populations is less likely.
The accurate reasons for why small, isolated populations are at a particular risk of extinction are:
- Because a single natural disaster or disease could wipe out the population.
- Because dispersal to and from other populations is less likely.
Small, isolated populations have limited genetic diversity and reduced gene flow due to their isolation. This makes them more vulnerable to the following factors:
1. A single natural disaster or disease: Small populations have fewer individuals, which means they have less genetic variation and are more susceptible to the impacts of natural disasters, such as hurricanes, fires, or disease outbreaks.
These events can have a disproportionately large impact on the population and potentially lead to extinction.
2. Dispersal limitations: Small, isolated populations face challenges in dispersal and gene flow. With limited opportunities for individuals to move between populations, genetic diversity decreases over time, increasing the risk of inbreeding and reducing the population's ability to adapt to changing environments.
This limited gene flow can further contribute to their vulnerability and increase the risk of extinction.
The other options listed (increase in heterozygotes from inbreeding and greater edge effects) are not accurate reasons for why small, isolated populations are at a particular risk of extinction.
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The first part of the scientific name is the _____. This word is always _____ and _____. It appears in _____ or is _____.
The first part of the scientific name is the genus. This word is always capitalized and italicized. It appears in Latin or is derived from Latin.
The scientific name of an organism consists of two parts - the genus and the species. The genus is the first part of the scientific name and refers to a group of organisms that share certain characteristics. The species is the second part of the scientific name and refers to a specific type of organism within the genus.
The genus name is always capitalized and italicized, while the species name is always in lowercase and italicized. The use of Latin in scientific names ensures that scientists all around the world can understand and use the same names for organisms, regardless of their native language.
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13. How many plates are approximately floating on the mantle?
Answer:
4
Explanation:
4
Answer:
They are 7 continents and ocean plates are there basically float across the mantle which is composed much hotter and denser material
Gary is a police officer who is also a forensic scientist. Currently, his job is in the crime lab and includes processing fingerprints, examining blood spatter evidence and testing evidence for DNA. One day he would like to work for the civil justice system instead of the criminal justice system. Which duty would Gary perform in civil justice more often than what he does as a criminal forensic scientist
Gary would perform the duty of handwriting analysis in civil justice more often than what he does as a criminal forensic scientist.
Gary is a police officer who is also a forensic scientist, working in the criminal justice system. This means he collects, analyzes fingerprints, examining blood spatter all to have evidence against a criminal. Know, he works in the criminal justice system meaning the government, which could be government law enforcers would need those evidence against an accused individual at a federal or state criminal court. On the other hand, in a civil justice system, citizens can bring lawsuits against one another.
Now he would like to work for the civil justice system, and for his experience as a criminal forensic scientist, he would fit handwriting analysis since handwriting analysis is also a forensic practice done for the purpose of providing evidence in court. But this time he would be assessing the identity of a person from their written documents where there are differences between writing samples instead of processing fingerprints.
In summary, Gary would perform the duty of handwriting analysis in civil justice systems assessing the identity of a person from their written documents.
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Summarize how the nervous system interacts with at least 3 other systems in the body.
The nervous system interacts with other systems of the body as follows:
digestive system - the nervous system initiates the sensation of hunger in the body by coordinating the contraction of the smooth musclesmusculoskeletal system - the nervous system controls the contraction and relaxation of the smooth musclesrespiratory system - the nervous system controls the respiratory system by increasing or decreasing the respiratory depending on the concentration of oxygen or carbon dioxide in the body.What is the nervous system?The nervous system is the system that controls the activities of all other systems of the body.
The nervous system consists of two parts;
the central nervous system - made up of the brain and the spinal cordthe peripheral nervous system - consists of the sensory neuron and motor neurons as well the smooth muscles and the skeletal muscles.Impulse from outside or within the body is first sent to the central nervous system which interprets and sends out messages to the other body system to respond.
The central nervous system integrates ad coordinates the activities of the other body systems such as the respiratory system, the digestive system, the musculoskeletal system, the excretory system, etc.
Signals are sent to these systems from the central nervous system resulting in the action of these systems, for example, rapid breathing, bowel movement, etc.
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The simplest structures that can carry out all of the activities characteristic of life are:
A. cells.
B. atoms.
C. molecules.
D. crystals.
A. Origin of Life- Scientists Hypotheses Disproving Spontaneous Generation (Word Bank: air, sealed, open, bacteria, gauze, spontaneously) Through the early 1800s, people believed organisms could ________________ develop, an idea known as spontaneous generation. In 1668, many believed maggots were spontaneous generated from rotting meat. Francis Redi’s experiment disproved this by experimenting with meat in open_jars, tightly snealed_jars and jars covered with cloth netting. It was also believed that bacteria spontaneously generated in broth. Lazzaro Spallanzani removed the _________ from a flask, __________ the broth and sealed the flask. No bacteria generated without exposure to the air. Some people still supported spontaneous generation but thought that air was a ________ force, necessary for it to occur. In 1859, Louis Pasteur completely disproved spontaneous generation by using a special flask that allow ______________ in but captured bacteria before it could get to the broth. No _________________ grew in the flask after boiling = no spontaneous generation. 2. First Life (Word Bank: eukaryotes, prokaryotic, variety, self-replicating, organic, photosynthesis, oxygen) Earth’s atmosphere had to be very hot and with little oxygen for the first ________________ molecules to first form. Organic molecules clumped together for form ______________________ structures that later evolved into cells. __________________________ cells were the first to evolve. When cells gained the ability to do ___________________________, they used up carbon dioxide and put more __________________ into the atmosphere.
Answer:
kjb
Explanation:
mnef
blocking afferent action potentials from the chemorecep- tors in the carotid and aortic bodies would interfere with the brain's ability to regulate breathing in response to a. changes in ph b. changes in pco2 c. changes in blood pressure d. changes in po2
It would be difficult for the brain to control breathing in response to -
(option c) change in blood pressure.
A chemoreceptor, sometimes referred to as a chemosensory receptor, is a specialized sensory organ that converts a chemical substance (either endogenous or produced) into a biological signal. If the chemoreceptor is a neuron, the signal may take the form of an action potential; otherwise, it may take the form of a neurotransmitter that can activate a nerve fibre. Examples of such specialised cells include taste receptors and internal peripheral chemoreceptors like the carotid bodies. An increase in the breathing amount of carbon dioxide in the blood, for example, is one alteration that a chemoreceptor can detect in physiology (hypercapnia).
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Name three adaptations that helped plants survive on land, and describe how each of them helped. (2 points)
Three adaptations that helped plants survive on land are cuticle, stomata, and roots. The cuticle protects plants from water loss and UV radiation. Stomata regulate gas exchange, and roots absorb water and nutrients.
When plants moved to land, they had to develop adaptations that would enable them to survive in an environment with fewer resources than they were accustomed to. Three adaptations that helped plants survive on land are discussed below:Cuticle: The cuticle is a waxy layer on the surface of the plant that protects it from water loss and desiccation. This layer is made up of cutin, a waterproof polymer, and is secreted by epidermal cells. The cuticle prevents water from evaporating from the surface of the plant, which is critical for survival in a dry environment. In addition, it also protects the plant from harmful ultraviolet radiation that can damage its DNA.Stomata: Stomata are tiny pores in the leaves and stems of plants that regulate gas exchange and water loss. They are surrounded by guard cells that regulate the opening and closing of the stomata. When there is a need to conserve water, the guard cells can close the stomata to prevent water from evaporating from the plant's surface. When there is a need for carbon dioxide, such as during photosynthesis, the guard cells can open the stomata to allow gas exchange.Roots: Roots are organs that anchor the plant to the ground and absorb water and nutrients from the soil. They allow plants to access water and nutrients that are necessary for survival. Furthermore, roots also help prevent soil erosion and provide support to the plant.Summary: Three adaptations that helped plants survive on land are cuticle, stomata, and roots. The cuticle is a waxy layer on the surface of the plant that prevents water loss and protects the plant from harmful ultraviolet radiation. Stomata are tiny pores that regulate gas exchange and water loss, and roots anchor the plant to the ground and absorb water and nutrients from the soil.For more questions on adaptations
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in the marine food web, which organism are considered predators to more than one organism? question 8 options: penguin and elephant seal krill and phytoplankton squid and zooplankton leopard seal and cod
The organisms in a food web that are considered predators to more than one organism are option A: penguin, and elephant.
Large predators like jellyfish and cephalopods (squid and octopus), large fish like sharks, tuna, and mackerel, marine mammals like seals, walruses, dolphins, and some species of whales (some eat fish, others directly eat zooplankton), and birds like pelicans, albatrosses, penguins, and skua are at the top of the marine food web.
Leopard seals and cod are therefore only considered to be predators of one organism among the possibilities you provided, whereas penguins and elephant seals are regarded to be predators of many organisms.
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Correct question:
In the marine food web, which organism are considered predators to more than one organism? question 8 options:
penguin and elephant
seal krill and phytoplankton
squid and zooplankton
leopard seal and cod
7. What is the basic
unit of life for all
living things?
Answer:
Cells
Explanation:
:>
Answer:
Cells
Explanation: they are the most basic building units of life. All living things are composed of cells.
calculate genotype frequencies if given the absolute number of individuals with particular genotypes in a population
A population's genotype frequency is calculated by the Hardy-Weinberg Principle i.e. dividing the number of people having a particular genotype by the overall population size.
We have a single gene with two alleles, which is the most basic case. These alleles could be A and an or A1 and A2, for example. Say A or A1 is tall and A or A2 is short. Assume that a population has the frequencies p and q. (Since there are only two options and they must sum to one, p + q = 1.). The genotype frequencies can be predicted if we are aware of the allele frequencies.
Expected Frequency
AA or A1A1 = p * p = p²
Aa or A1A2 = pq + pq (or 2pq)
aa or A2A2 = q * q = q²
p² + pq + pq + q² = 1, or 100%
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True or false?
Convection currents keep our atmosphere mixed.
A rainbow after a rainstorm is an example of what? What is the point of confusion?
Answer:
C
Explanation:
Answer:
This scrambling is what we call refraction. After scrambling interior the rain bead, the light bounces once until it at long last exits the bead and a rainbow is made.
A discrete, locally folded unit of protein tertiary structure usually having a specific function best describes __________. A discrete, locally folded unit of protein tertiary structure usually having a specific function best describes __________. a domain a motif a complex quaternary structure
Answer:
a domain
Explanation:
The domains are the basic units of the proteins, they are polypeptide segments (about 30 -200 amino acids) that have a defined tertiary structure and play specific biological functions including, for example, enzymatic and structural activities. Protein domains are evolutionary conserved, it means that these polypeptide segments can be found in phylogenetically related species and share sequence homology. Examples of protein domains include the zinc finger and the helix-turn-helix domains which are involved in protein-DNA interactions of transcription factors.
explain how the geologist knows that the flow is older then the intrusion
in island biogeography, what does species area relationship indicates? a. large islands that are far get more species that can fly or swim b. large islands increase the probability of extinction c. habitat heterogeneity provides suitable niches to colonize d. smaller habitat size reduces the probability of extinction
The species-area relationship in island biogeography indicates that larger habitat size reduces the probability of extinction. Habitat heterogeneity provides suitable niches to colonize, thus allowing for a higher number of species in the area. Therefore, the correct option is c.
Habitat heterogeneity provides suitable niches to colonize. Let's discuss the given options one by one.a. Large islands that are far get more species that can fly or swim: This option is incorrect because the number of species on an island is not determined by how far it is from the mainland but instead by the size of the island. Large islands increase the probability of extinction: This option is incorrect because larger islands provide more suitable habitats for a higher number of species and not for increasing the probability of extinction Smaller habitat size reduces the probability of extinction: This option is incorrect because smaller habitat size provides a lower number of suitable niches and habitats to colonize, which can increase the probability of extinction.
Thus, it can be concluded that habitat heterogeneity provides suitable niches to colonize in island biogeography.
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What characteristic enable the uterus to hold the fetus even though it is just the size of a fist?
help plsss :(
Answer:
Explanation:
It is made of flexible but strong tissues of granular cells. They are thick tissues so they don't tear down.
How are fish with backbones inside their bodies classified?
Answer:
Vertebrates
Explanation:
1 7.1.2 Exam: Semester Exam Question 36 of 42 What tends to happen to a sound wave as air temperature increases? O A. The wave's speed decreases. B. The wave stands still. . O C. The wave vibrates more slowly . D. The wave's speed increases
Answer:
D
Explanation:
The wave's speed increases when air temperature increases. Therefore, option (D) is correct.
What are sound waves?As air temperature increases, the speed of sound waves in air also increases. This is because air molecules move more quickly at higher temperatures, and the faster-moving molecules can transmit the sound energy more quickly. As a result, sound waves will travel faster through hot air than through cold air.
Conversely, as air temperature decreases, the speed of sound waves in air will decrease as well. This property of sound waves can have practical implications, such as in designing concert halls or sound systems where the temperature of the air needs to be taken into account in order to achieve optimal sound quality.
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Which organisms are more closely related, [bears and lizards] or [bears and newts]? How do you know?
Answer:
Bears and lizards are more closely related.
Explanation:
The chart shows the branches of the species. The relativity of each species to each other shows how closely related they are.
organisms that are placed close to each other and have a nearly common ancestor have some similarities, so the bear and the lizard are closer to each other than the newt because they are closely present in the cladogram.
What is the cladogram?The cladogram is the diagrammatic representation of the animals and shows how the organisms have evolved and their special traits. This cladogram explains how the species show commonness and difference, such as the bear and the chimpanzee, which are both derived from the common mammal ancestor.
From the common amneote ancestor, the lizard, bear, and chimpanzee are descended, so they all have the traits of the amneote. From a common tetrapod ancestor, the newt, the lizard, the bear, and the chimpanzee are derived, and all have some characteristic of the tetrapoda.
Hence, the bear and the lizard are closer to each other than the newt because they are both present closely in the cladogram.
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The relationship between chromosome chromatinod and DNA
Chromosomes are made of DNA and histone proteins, organized into chromatin, which regulates gene expression through different compaction states.
Chromosomes are structures inside cells that contain hereditary material as DNA atoms. DNA is firmly pressed and coordinated with proteins called histones to shape chromatin, which makes up the construction of chromosomes. Chromatin can exist in various conditions of compaction, influencing how qualities are communicated. For instance, when chromatin is firmly pressed, qualities might be less open and less inclined to be communicated. Then again, when chromatin is less conservative, qualities might be more open and bound to be communicated. By and large, the connection between chromosomes, chromatin, and DNA is basic to the guideline of quality articulation and the transmission of hereditary data starting with one age then onto the next.
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Answer:
Here are some key points about the relationship between chromosomes, chromatin, and DNA:
Chromosomes are thread-like structures found in the nucleus of a cell that contain DNA.DNA is the genetic material that carries the instructions for the development, function, and reproduction of all living organisms.Chromosomes are composed of DNA and proteins, primarily histones, which help package and organize the DNA into a compact and manageable structure.Chromatin is the complex of DNA and proteins that make up chromosomes.In the nucleus of a cell, chromatin is found in two forms: heterochromatin, which is tightly packed and generally inactive, and euchromatin, which is loosely packed and generally active.DNA is organized into units called genes, which are segments of DNA that contain the information for making specific proteins.Chromosomes are inherited from one generation to the next and are responsible for passing on genetic traits from parents to offspring.Changes in the structure or number of chromosomes can lead to genetic disorders or diseases.Advances in genetics and genomics have enabled scientists to study the relationship between DNA, chromatin, and chromosomes in more detail, leading to a better understanding of how genetic information is stored, expressed, and transmitted.If 70% of the alleles in a gene pool of a population are dominant, the frequency of the
Answer:
Explanation:
The number of copies of an allele in a population divided by the total number of all alleles for that gene in a population is the allele frequency. For a gene with two alleles whose frequencies are p and q, the Hardy-Weinberg equation states that the genotypes that are possible for the population are p^2 + 2pq + q^2, which is equal to
a cross between true-breeding vestigial and sepia flies leads to a uniform wildtype f1 generation. which genotype in the f2 generation causes a phenotype that occurs at a fraction of 3/16?
vg/vg, se/se+ and vg+/vg+, se/se genotype in the f2 generation causes a phenotype that occurs at a fraction of 3/16.
Phenotype refers to an organism's morphology, or its physical form and structure, as well as its physiological and biochemical characteristics, behavior, and the outcomes of that behavior. The genotype, or the expression of an organism's genetic code, and the impact of environmental circumstances are the two fundamental components that determine an organism's phenotype. Both elements could interact, which would further impact phenotypic. The term "polymorphic" refers to a species that has two or more distinct phenotypes that coexist in the same population.
The genotype is the mirror of the phenotype, hence during genetic crosses the phenotype help to predict the genotype.
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1. What is the % of glucose outside the cell?
2. What is the % of water outside the cell?
3. What is the % of water inside the cell?
4. Will osmosis occur?
5. If so, which way will water move (into or out of the cell)?
6. Will the cell swell or shrink?
7. The cell is in what type of solution (hypertonic, hypotonic, isotonic)?
Osmosis is the simple passive transport through which water moves through a semipermeable membrane when solutions at bot sides show a difference in solute concentration. 1. 10%. 2. 90%. 3. 80%. 4. Yes. 6. swell. 7. hypertonic
What is osmosis?
Osmosis is the simple passive transport of water molecules that occurs when two dilutions of different concentrations are separated by a semipermeable membrane.
The membrane allows the pass of water but not solute. Hence, water can move from the most diluted side (higher water potential) to the less diluted one (lower water potential).
Let us remember that the water potential is the potential energy in a mass of water. Among other factors, it depends on solute concentration,
Most diluted side ⇒ higher water potentialMost concentrated side ⇒ lower water potentialConcerning solute concentrations,
the hypertonic solution is the one with the highest solute concentrationthe hypotonic solution is the one with less solute concentration. The most diluted one. isotonic solutions are those with equal solute concentrations.1. What is the % of glucose outside the cell? 10%
2. What is the % of water outside the cell? 90%
3. What is the % of water inside the cell? 80%
4. Will osmosis occur? Yes, because there is a difference in solute and water concentration.
5. If so, which way will water move (into or out of the cell)? Into the cell.
6. Will the cell swell or shrink? the cell will swell because water in goin in.
7. The cell is in what type of solution (hypertonic, hypotonic, isotonic)? hypertonic, because solute concnetration is higher in the cell thann outside.
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