Answers
Answer:
hydrogen bonds
Explanation:
hydrogen bonds
In the case of water, hydrogen bonds form between neighboring hydrogen and oxygen atoms of adjacent water molecules. The attraction between individual water molecules creates a bond known as a hydrogen bond.
Related Questions
NEED HELP ASAP
Which of the following is used for STRUCTURE and not for ENERGY?
A)glycogen which stores excess glucose consumed by animals
B)starch which stores excess glucose made during photosynthesis in plants *
C)cellulose which is difficult to break apart
Answers
Answer:
the answer is option c cellulose..
Explanation:
Cellulose is a molecule, consisting of hundreds – and sometimes even thousands – of carbon, hydrogen and oxygen atoms. Cellulose is the main substance in the walls of plant cells, helping plants to remain stiff and upright. Humans cannot digest cellulose, but it is important in the diet as fibre.
Starch or amylum is a polymeric carbohydrate consisting of numerous glucose units joined by glycosidic bonds. This polysaccharide is produced by most green plants as energy storage
Glycogen is a multibranched polysaccharide of glucose that serves as a form of energy storage in animals, fungi, and bacteria. The polysaccharide structure represents the main storage form of glucose in the body.
hope it helped you and the answer is correct
The term that is used for structure and not for energy is cellulose, which is difficult to break apart. The correct option is c.
What is cellulose?A molecule called cellulose is made up of hundreds, and occasionally even thousands, of carbon, hydrogen, and oxygen atoms. The primary component of plant cell walls, cellulose, keeps plants rigid and upright.
A polymeric carbohydrate known as starch or amylum is made up of many glucose units connected by glycosidic linkages. Most green plants synthesize this polysaccharide as a form of energy storage.
Animals, fungi, and bacteria all use the multibranched polysaccharide of glucose known as glycogen to store energy. The primary form of glucose storage in the body is represented by the polysaccharide structure.
Therefore, the correct option is C) cellulose, which is difficult to break apart.
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role of all four types of lipids: fats, phospholipids, waxes, and steroids.
Answers
The four types of lipids, namely fats, phospholipids, waxes, and steroids, play distinct roles in various biological processes. Fats are primarily involved in energy storage, while phospholipids form the structural basis of cell membranes. Waxes provide protection and waterproofing for plants and animals, and steroids serve as signaling molecules and are involved in various physiological functions.
1. Fats: Fats, also known as triglycerides, are a type of lipid that play a crucial role in energy storage. They are composed of glycerol and three fatty acid chains. Fats are stored in adipose tissue and serve as a long-term energy reserve. During times of energy deficiency, fats are broken down through a process called lipolysis to release energy.
2. Phospholipids: Phospholipids are a major component of cell membranes. They consist of a glycerol molecule, two fatty acid chains, and a phosphate group. The unique structure of phospholipids allows them to form a lipid bilayer in cell membranes, with the hydrophobic fatty acid tails facing inward and the hydrophilic phosphate heads facing outward. This arrangement creates a selectively permeable barrier that controls the movement of substances in and out of the cell.
3. Waxes: Waxes are a type of lipid that serve protective functions in both plants and animals. They are composed of long-chain fatty acids and a long-chain alcohol. In plants, waxes form a waterproof coating on the outer surfaces of leaves, stems, and fruits, preventing excessive water loss and providing protection against pathogens. In animals, waxes are found in structures such as the ear canal, providing lubrication and protection against foreign particles.
4. Steroids: Steroids are a class of lipids characterized by a four-ring structure. They have diverse roles in the body, including serving as signaling molecules and regulating various physiological processes. For example, cholesterol, a type of steroid, is a precursor for the synthesis of steroid hormones such as estrogen, testosterone, and cortisol. These hormones play essential roles in reproduction, development, and metabolism.
Overall, the four types of lipids - fats, phospholipids, waxes, and steroids - each have distinct functions and contribute to various biological processes in organisms.
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What is the typical F2 ratio in the case of dominant epistasis?
Answers
Answer:
12:3:1
Explanation:
The typical F2 ratio in cases of dominant epistasis is 12:3:1.
The epistasis is a form of gene interaction in which an allele in one locus interacts with and modifies the effects of alleles in another locus. There are different types of epistasis depending on the type of alleles that are interacting. These include:
Dominant/simple epistasis: Here, a dominant allele on one locus suppresses the expression of both alleles on another locus irrespective of whether they are dominant or recessive. Instead of the Mendelian dihybrid F2 ratio of 9:3:3:1, what is obtained is 12:3:1. Examples of this type of gene interaction are found in seed coat color in barley, skin color in mice, etc.Other types of epistasis include recessive epistasis (9:3:4), dominant inhibitory epistasis (13:3), duplicate recessive epistasis (9:7), duplicate dominant epistasis (15:1), and polymeric gene interaction (9:6:1).Rates of heritable mutations are lower in multicellular
organisms because only germ cell mutations heritable.
TRUE
FALSE
Answers
Why do living things go to great lengths to increase
their chances of reproduction?
Answers
Answer:
Living things use structural strategies and behavioral strategies that increase their chances of reproduction.
Living things do so to reach the reproduction goal that is to pass genes on to offspring. For example: the pouch of a kangaroo, a frog croaking a mating call, and colorful petals of flower etcetera helps in increasing mating chances so that their genes can be followed to the generation.
For children from two to five, chikcare spaces are best organized into centers for play.
True or false ?
Answers
Answer:
True
Explanation:
Life on Earth likely evolved from a common ancestor that existed approximately 3.5 billion years ago. Which of these is evidence that all life on Earth shares common features? Select ALL that apply.
Responses
A All life on Earth has DNA as the molecule of heredity.All life on Earth has DNA as the molecule of heredity.
B All life on Earth is made up of cells with a rigid cell wall.All life on Earth is made up of cells with a rigid cell wall.
C All life on Earth performs transcription and translation in a similar fashion.All life on Earth performs transcription and translation in a similar fashion.
D All life on Earth contains mitochondria for cellular energy.All life on Earth contains mitochondria for cellular energy.
E All life on Earth has cells surrounded by membranes.
Answers
the evidence that all life on Earth shares common features is that All life on Earth performs transcription and translation in a similar fashion. and All life on Earth has cells surrounded by membranes.
What is transcription and translation?
The process of transcribing a piece of DNA into RNA is known as transcription. Messenger RNA is created when segments of DNA are translated into RNA molecules that can encode proteins. Translation is the process by which ribosomes in the cytoplasm or endoplasmic reticulum create proteins following the transcription of DNA to RNA in the cell's nucleus. The entire process is known as gene expression.
What is cell membrane?
The cell membrane, also known as the plasma membrane, is found in all cells and serves to separate the cell's interior from the outside environment. The cell membrane is made up of a semipermeable lipid bilayer. The cell membrane controls the transport of materials into and out of the cell.
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The genetic code is based upon a triplets, where certain codons code for the same amino acid and are therefore redundant. Suppose instead that the genetic code is based upon a doublets. Given a nucleotide composition of four unique bases, determine the total possible number of codons.
Answers
three nucleotides—called a triplet or codon—codes for one particular amino acid in the protein. The nucleotide sequence in the DNA is first transcribed into a molecule of messenger RNA (ribonucleic acid).
Stage 1 sleep is characterized by a predominance of ________ wave activity in the brain.
Answers
Answer: theta
Explanation:
Stage 1 sleep is characterized by a predominance of alpha and theta wave activity in the brain.
The stage of entering the state of sleep is also called stage 1 and is considered as a boundary between the waking state and sleeping.
In this stage, the rhythm alpha predominates, which tends to slow down and show the presence of waves called theta, which are of greater amplitude.
Alpha activity is a pattern that results from a person resting and relaxing.
Theta waves are broad, low-frequency waves that would indicate a state of extreme relaxation and drowsiness.
Eye movements at this stage are slow and muscle tone drops. Phase I is short-lived and occupies about 3-5% of sleep.
Therefore, we can conclude that in stage 1 of sleep the alpha waves would be combined, with a new activity, called theta.
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Quagga mussels, an invasive species of mollusk originally from
Russia, have been introduced to the lake after being carried in on
the hulls of boats. An assessment of the size of the quagga
mussel problem is needed, along with suggestions to curb their
population growth.
what field of science is this?
Answers
This is a problem in the field of ecology.
The problem of quagga mussels in the lake is an ecological issue that requires scientific assessment and management.
It falls under the discipline of ecology, which studies the relationships between organisms and their environment.
Ecologists investigate the impacts of invasive species on the ecosystem and devise strategies to control their spread and minimize their effects.
In this case, scientists will need to examine the size of the quagga mussel population, their distribution, and their ecological interactions with native species.
They will also need to recommend measures to prevent further introduction of quagga mussels and to manage their population growth, such as using chemical treatments or biological controls.
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DNA is made of a sugar, a phosphate, and a nitrogen base. Which of these
three make up the instructions to code for your traits?
Answers
Answer:
In turn, each nucleotide is itself made up of three primary components: a nitrogen-containing region known as a nitrogenous base, a carbon-based sugar molecule called deoxyribose, and a phosphorus-containing region known as a phosphate group attached to the sugar molecule
Also I got this from my friend so all credits go to her
Does the pharynx of human respiratory system have cartilage and epithelium?
Answers
Answer:
There is no cartilage but there is epithelium
Explanation:
The pharynx of the human respiratory system does not contain cartilage.
The pharynx, part of the human respiratory system, is a muscular tube that connects the nasal cavity and mouth to the larynx and esophagus. It serves as a passage for air and food. The gorge is made up of several regions, each with its own distinctive features.
The nasopharynx, the top part of the throat, contains no cartilage. Instead, it is lined with pseudostratified ciliated epithelium.This special epithelium helps to trap and transport mucus along with any particles or pathogens in the digestive system for elimination.
These regions also lack cartilage but are lined with stratified squamous epithelium. This type of epithelium provides protection from mechanical stress and potential abrasion caused by the passage of food and other substances down the pharynx.
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GIVING BRAINLIEST IF YOU HURRY ! living environment help! 20 pointsss
Answers
B=herbivore
C=carnivore
Sorry if I’m wrong
Which answer best compares the end result of a cell that goes through meiosis to that of a cell that goes through mitosis?
A) The cell that goes through meiosis will have the same number of daughter cells as the one that goes through mitosis.
B) The cell that goes through meiosis and the one that goes through mitosis will both produces haploid cells.
C) The cell that goes through meiosis results in haploid cells, while the one that goes through mitosis produces diploid cells.
D) The cell that goes through meiosis will produce half as many daughter cells as the one that goes through mitosis.
Answers
Answer:
A
Explanation:The cell that goes through meiosis will have the same number of daughter cells as the one that goes through mitosis.
A
They will have the same number
identify at least three ways in which oxygen improved the opportunity for higher life forms to develop on the earth
Answers
The increased creation of oxygen threw off the balance of Earth's original atmosphere. Because oxygen was hazardous to many anaerobic species, many anaerobic forms of bacteria were eliminated, creating biological "niches."
According to new research published in BMC Evolutionary Biology, oxygen had an important role in the evolution of complex species. According to the findings, the complexity of living forms developed earlier than previously assumed, and in tandem with the availability of oxygen as an energy source.
To survive, most living things require oxygen. Oxygen aids organisms in their growth, reproduction, and the conversion of food into energy. Humans obtain the oxygen they require by breathing into their lungs through their nose and mouth.
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Which of the following accurately describes a trade-off of using biomass as a fuel?A.Biomass is inexpensive but nonrenewable.B.Biomass is easy to produce but generates radioactive waste.C.Biomass is renewable but produces air pollution.D.Biomass produces no air or water pollution but is expensive to collect.
Answers
The correct answer is the letter C. Biomass is renewable but produces air pollution.
The term biomass refers to organic matter that comes from plants and animals and it is a renewable energy source; however, it has an adverse effect on the environment as it will contribute to air pollution.
Four environmental factors are listed below. Which factors limit environmental carrying capacity in a land
ecosystem?
A. Energy
B. Water
C Onnen
I need help
Answers
Between 1955 and 1977, groundwater was used to irrigate crops in the San Joaquin Valley. Which of these was a consequence? A. An increase in ground altitude B. Wetland sprawl C. A decrease in soil salinity D. Groundwater depletion
Answers
Answer:
D. Groundwater depletion
Explanation:
Groundwater is the water that is found just under the surface of the earth.
The effect of using groundwater to irrigate crops between 1955 and 1977 in the San Joaquin Valley was that there was groundwater depletion as there was scarcity of groundwater, even as the irrigation brought increase in yield.
Where are the A, B and RH antigens located
Answers
Answer: The A, B, and Rh antigens are located on the surface of red blood cells.
Explanation:
Homologous recombination occurs in a heterozygote in which alleles D and d differ by a single base pair. The D allele has a G at one position, whereas the d allele has a C at the same position. If branch migration causes heteroduplex formation across this position, what is the expected outcome
Answers
Answer:
The DNA repair pathway will recognize the mismatch (G-G) to convert guanine to cytosine (C), thus reverting the DNA sequence to the d allele
Explanation:
DNA repair pathways correct mismatches that can arise during DNA replication and recombination, which can be naturally caused or as consequence of mutagenic treatments (for instance, exposure to UV light). However, these pathways are not always efficient and there are occasions that mismatches escape from the mechanisms of correction. If these mismatches occur in gametic cells, mutations could be fixed in the next generation. The base mismatch repair mechanism during recombination is known as 'gene conversion', since this process produces the conversion of one allele to other as result of an inappropriate base mismatch.
b. In one or two sentences describe the impact of fossil fuel combustion on the global carbon cycle.
Answers
Fossil fuels increase the amount of free carbon in the global carbon cycle.
What are fossil fuels?
Fossil fuels are those fuels which are obtained from the conversion of fossils of dead plants and animal which over a long period of time and under intense heat and pressure are converted to fuels.
Examples of fossil fuels are coal, natural gas and petroleum.
Fossil fuels mostly contain carbon which is released into the atmosphere in the form of carbon dioxide when these fuels are burned.
Therefore, fossil fuels increase the amount of free carbon in the global carbon cycle.
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How does an increased population size affect the amount of competition between organisms?
Answers
describe how impulse are transmitted across a synapse
Answers
A tiny electric message moves through a long part of a brain cell called the axon. When a message goes to the end of a nerve, it sends chemicals called neurotransmitters. These substances move through a tiny gap and attach to special parts of another nerve cell's outer covering.
What are the impulse?Messages called impulses are sent from one nerve cell to another through a connection called a synapse. This process is called synaptic transmission. Synapses are connections between nerve cells or between nerve cells and other cells, like muscles or glands.
The neuron sending the signal is called the presynaptic neuron. When a signal travels down a nerve cell, it causes little sacs called vesicles to release chemicals called neurotransmitters.
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To understand how the scientific method can be used to search for explanations of nature An astrology-loving friend hypothesizes that people born in that week like horror movies more than other genres of movies. You decide to use the scientific method to test this hypothesis.
The scientific method is a procedure used to search for explanations of nature. The scientific method consists of making observations, formulating hypotheses, designing and carrying out experiments, and repeating this cycle.
Observations can be either quantitative or qualitative. Quantitative observations are measurements consisting of both numbers and units, such as the observation that ice melts at 0°C. In contrast, qualitative observations are observations that do not rely on numbers or units, such as the observation that water is clear.
A hypothesis is a tentative explanation of the observations. The hypothesis is not necessarily correct, but it puts the scientist's understanding of the observations into a form that can be tested through experimentation.
Experiments are then performed to test the validity of the hypothesis. Experiments are controlled procedures, preferably made under conditions in which the variable of interest is related to hypothesis .
In the course of a conversation, you observe that three of your friends like horror movies. Horror movies happen to be your favorite type of movie as well. You also know that all of these friends were born in the same week that you were, even in the same year.
An astrology-loving friend hypothesizes that people born in that week like horror movies more than other genres of movies. You decide to use the scientific method to test this hypothesis. What should you do next?
A. Come up with a theory to explain birth week.
B. Perform experiments to test your.
C. Propose several alternative hypotheses.
D. Refine your hypothesis.
Answers
Answer:
B. Perform experiments to test your hypothesis
Explanation:
Scientific experiments involves using scientific method, which is an outlined manner of conducting an experiment. The scientific method consists of series of steps starting from making observation, followed by formulating an hypothesis, and then carrying out the experiments (as stated in the question).
According to this question, an observation that that three friends who were born in the same week like horror movies has been made. Using the scientific method, this was followed by formulating an hypothesis that "people born in that week like horror movies more than other genres of movies". Hence, this hypothesis will be tested out next by conducting an experiment.
The experiment will prove/disprove the hypothesis (a testable explanation). A way to carry out the experiment is by finding out if other people born in the same week as your friends like horror movies.
The phenotypic variation in behavior between the two populations can best be described as resulting from sexual selection sexual selection A natural selection natural selection B artificial selection artificial selection C genetic drift
Answers
About the question:
I failed to find the complete question. However, I propose the following answer and explanation according to the given statement.
Answer:
Natural selection
Explanation:
Natural selection is the product of the interaction between phenotype and environment, which determines gene destiny in space and time, selecting beneficial alleles and increasing their frequency in the population.
Natural selection results in adaptation, which means the increase of the aptitude phenotype. Aptitude is the contribution of each genotype to the next generation.
In many cases, adaptations -as a result of natural selection-, can be correlated to environmental factors or selective pressures applied by other organisms or habitats. These organisms might change or modify their habits according to the environmental pressures that are acting on them. Natural selection favors these new habits and behavior. The better an organism can behave in an environment, the higher chances to survive.
In the exposed example, if assuming that these two populations belong to the same species, they might behave differently from each other if they are, for instance, occupying different niches, changing their feeding habits, competing with other species, among other factors. If these two groups are separated in space and/or time, they might receive different environmental pressures that lead them to change the original behavior to a new one. And as both groups are separated, those pressures probably differ, modeling a behavior adapted to a specific niche.
Answer:
The correct answer is natural selection.
What is a niche?
It is the food an organism eats.
It is how the organism lives.
Answers
Answer:
a niche is a particular place and organism of an ecosystem occupies
Explanation:
Which best describes the vulva?
It is a muscular organ where a developing offspring grows.
It is the external part of the female genital organs.
It is the birth canal of the female reproductive system.
It is the organ in the female that carries the egg to the uterus.
Answers
Answer:
the best of those options that would describe the vulva would be: it is the external part of the female genital organs.
Explanation:
Answer:
The correct answer is
B. It is the external part of the female genital organs.
Explanation:
just took the test from E D G E
Hope this helps
type a paragraph explaining how the atoms in sugar molecules can be
used to form amino acids and other large carbon-based molecules?
HELP PLS!!!!!!!!
Answers
Answer:Sugar molecules contain carbon, hydrogen, and oxygen: Their hydrocarbon backbones are used to make amino acids and other carbon-based molecules that can be assembled into larger molecules (such as proteins and DNA)
The graph shows the results of a famous biological experiment. In the experiment, Kettlewell believed that the peppered moth demonstrated how environmental pressures influence evolution. He studied two areas. Birmingham was a rural wood, with natural conditions. Dorset was an urban, industrial area. The moths use tree trunks to camouflage themselves against birds, which are their major predators. Natural gene variations produce a light form of the peppered moth, and a dark form, meaning that they are not equally visible.
All BUT ONE statement is supported by Kettlewell's data. That is
Question options:
Dark moths had a survival disadvantage in industrial Dorset.
Light moths had a survival disadvantage in industrial Dorset.
Dark moths had a survival disadvantage in forested Birmingham.
Light moths had a survival advantage in forested Birmingham.
Answers
The statement not supported by Kettlewell's data is "Light moths had a survival disadvantage in industrial Dorset," while the other statements are supported by the experiment's results.
What statement is not supported by Kettlewell's data regarding the survival of peppered moths?The statement that Kettlewell's statistics does not support is: "Light moths had a survival disadvantage in industrial Dorset."Kettlewell's data showed that dark moths had a survival advantage in forested Birmingham, where the tree trunks were darkened by pollution, making the dark moths harder to spot by predators. In contrast, light moths had a survival advantage in forested Birmingham before industrialization when tree trunks were lighter in color.
In industrial Dorset, where pollution had darkened the tree trunks, Kettlewell found that dark moths had a survival advantage, as they were better camouflaged against the darker tree trunks. Light moths, on the other hand, had a survival disadvantage in industrial Dorset, as they were more visible to predators against the darkened tree trunks.
Therefore, all the statements except "Light moths had a survival disadvantage in industrial Dorset" are supported by Kettlewell's data.
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Complete Question
The graph shows the results of a famous biological experiment. In the experiment, Kettlewell believed that the peppered moth demonstrated how environmental pressures influence evolution. He studied two areas. Birmingham was a rural wood, with natural conditions. Dorset was an urban, industrial area. The moths use tree trunks to camouflage themselves against birds, which are their major predators. Natural gene variations produce a light form of the peppered moth, and a dark form, meaning that they are not equally visible.
All BUT ONE statement is supported by Kettlewell's data. That is
Question options:
Dark moths had a survival disadvantage in industrial Dorset.
Light moths had a survival disadvantage in industrial Dorset.
Dark moths had a survival disadvantage in forested Birmingham.
Light moths had a survival advantage in forested Birmingham.
The Movement of a Chemical Does
The Movement of a Chemical Occurs from High to Low Concentration.
The Movement of a Chemical Occurs from Low to High Concentration.
The Movement of a Chemical Requires Chemical Energy.
The Movement of a Chemical Does Not Require Chemical Energy.
12. Select All Correct Statements Pertaining to Primary Active Transport.
The Movement of a Chemical Requires a Transporter Protein.
Chomical Does Not Require a Transporter Protein.
Answers
The Movement of the Chemical Does Low to the High Concentration.
Chemical Behavior We are developing techniques to measure the behavior of various types of chemicals in the environment using a passive sampler. Passive samplers measure chemicals in the environment. Chemicals are ingested by his sampler passively in a manner similar to that ingested by humans and animals. A chemical is a substance with a defined composition. That is, chemicals are always made up of the same "things". Some chemicals are found in nature, such as water. A chemical reaction associated with, used by, or produced in chemistry or chemical phenomena. :Acting on or manipulated or manufactured by chemicals. A chemical fire extinguisher. :Detectable by chemical means.02-Nov-2022
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