Which would be true of sexual reproduction?
a
increases survival rate
b
involves one parent
c
increases genetic diversity
d
produces identical offspring
Answers
Answer:
c increases genetic diversity
Explanation:
Answer:
C. increases genetic diversity
Explanation:
First, by process of elimination: sexual production doesn't necessarily increase survival rate, it can, but not always. Sexual reproduction involves two parents, so b is wrong. And sexual reproduction doesn't produce identical offspring, because it's mixing the genes from both parents, do d is wrong. That only leaves c, with two parents, the gene pool is always expanding, and with less chance of mutation
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Related Questions
A student performs an experiment to study the transport of water in and out of cells. He uses clear, semi-permeable plastic bags to represent the cell membrane. The student places three plastic bags of the same size, each containing a 1% concentration sucrose solution, into three different beakers. One beaker contains distilled water, another beaker contains a 3% concentration sucrose solution, and the third beaker contains a 1% concentratIon sucrose solution. The diagram shows the students experimental setup, the plastic bag before it is placed in the beakers, and the appearance of the bags after an hour in each solution. Which statement provides a conclusion about the transport of water in and out of cells based on the results of the students experiment?
Answers
Answer:
B
Explanation:
A. Water moves freely both inside and outside the cell independent of the solute concentration.
B. Water movement into the cell is dependent on the percent concentration of solutes both inside and outside the cell.
C. Water transports solutes out of the cell to balance the percent concentration of solutes both inside and outside the cell.
D. Water moves into the cell solutes move out of the cell to ensure their concentration is balanced both inside and outside the cell.
The correct statement that provides a conclusion about the transport of water in and out of the cells is that water movement into the cell is dependent on the percent concentration of solutes both inside and outside the cell.
Water molecules will always move from the region of higher water potential to the region of lower water potential. The more the solute concentration of a solution, the lower the water potential compared to a solution with a lower solute concentration.
Hence, water will move from the beaker containing distilled water into the plastic bag containing a 1% sucrose solution until an equilibrium is established - the solution in the beaker is hypotonic to the one in the bag.
On the contrary, water will move from the bag containing 1% sucrose solution into the beaker containing 3% sucrose solution until there is no longer any net movement of water - the solution in the beaker is hypertonic to the one in the bag.
There will not be any movement of water from the bag to the beaker containing 1% sucrose because both solutions are of the same concentration, that is, isotonic.
The correct option is B
Upon activation, p65 and cRel control the level of IL-6 mRNA by:
A) binding RNA
B) binding DNA
C) replicating RNA
D) replicating DNA
Answers
Upon activation, p65 and cRel control the level of IL-6 mRNA by binding DNA, specifically at the promoter region of the IL-6 gene. Therefore, the correct answer is B) binding DNA.
p65 and cRel are both subunits of the transcription factor NF-κB, which plays a key role in the regulation of immune responses and inflammation. In the context of the regulation of the IL-6 gene, p65 and cRel bind to a specific DNA sequence in the promoter region of the gene, which leads to the activation of IL-6 transcription and subsequent translation of the mRNA into the IL-6 protein.
The binding of p65 and cRel to the IL-6 promoter is initiated by the activation of upstream signaling pathways, such as those mediated by proinflammatory cytokines or pathogen-associated molecular patterns. These signals lead to the activation of the IκB kinase (IKK) complex, which in turn phosphorylates and activates NF-κB.
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The graph shows one consequence of urban sprawl. How did urban sprawl
contribute to the change in biodiversity?
Answers
Urban Sprawl leads to reduced habitat and fragmentation. Option D
How does Urban Sprawl affect biodiversity?Natural ecosystems are frequently destroyed and fragmented as a result of urban sprawl. Forests, marshes, and other habitats are destroyed when cities grow to make room for new structures, parking lots, and other infrastructure.
The remaining natural areas become fragmented as a result of habitat loss, isolating populations of plants and animals and interfering with their ecological connectedness. Fragmented ecosystems make it harder for species to migrate, reproduce, and obtain suitable resources, which causes biodiversity to dwindle.
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A scientist is investigating a specimen in a laboratory. She is attempting to determine whether it is a virus or not. Which of the following would allow her to conclude that it is not a virus?
A. The specimen contains DNA and RNA
B. The specimen is extremely small
C. The specimen has a protein coat
D. The specimen has no organelles
Answers
expalain the importance of managing water transport across the cell membrane
Answers
Water movement across cell membranes is necessary for cellular integrity, but it can cause problems.
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 build up of a semipermeable lipid bilayer. The cell membrane controls the transport of materials into and out of the cell.Water moves across cell membranes via diffusion and osmosis. The total solute concentrations and the permeabilities of the solutes relative to water determine the effective osmolality of a biological fluid.A small difference in solute concentration causes a large osmotic pressure gradient across the cell membrane, and animal cell membranes cannot withstand any significant pressure gradient.Without water, cell membranes will indeed lack structure, and cells will be unable to put important molecules within the cell and harmful molecules outside the cell.To learn more about cell membrane refer to :
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Which of these is an important reason for sleep? Sleep increases blood flow to the muscles. Sleep saves energy. Sleep increases blood flow to the brain. Sleep increases the speed of all the body's chemical reactions.
Answers
Sleep is an important aspect of human life. It is a natural and essential requirement for the body to function effectively. There are numerous reasons why people need to sleep. However, one of the significant reasons for sleep is that it increases blood flow to the brain.
Sleep plays a vital role in the overall functioning of the human body. During sleep, the brain can rest, recuperate and repair itself. During this time, the brain gets an opportunity to reorganize, consolidate and store information that is important to the individual.Sleep is also important because it saves energy. When an individual sleeps, their body is in a state of rest, which means that the body is not using as much energy as it would if it was active. This is why people often feel refreshed and rejuvenated after a good night's sleep.Sleep also increases the speed of all the body's chemical reactions.
While asleep, the body continues to perform various essential functions, such as the regulation of hormones and the elimination of toxins. Furthermore, sleep promotes the growth and repair of tissues, including muscles. It is also important to note that during sleep, the immune system is boosted, which helps fight off infections and diseases.In conclusion, sleep is essential to maintaining good health and wellbeing. It has numerous benefits for the brain, the body, and the overall functioning of human beings.
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Which of the following immune responses occurs when a cytotoxic T cell is activated?
Cytotoxic T cells release antigen that inform other white blood cells to fight the pathogen causing the infection.
Cytotoxic T cells release histamine molecules that signal the blood vessels to dilate.
Cytotoxic T cells release antibodies that neutralize antigens of pathogens.
Cytotoxic T cells release proteins that trigger infected cells to undergo apoptosis and/or cytolysis.
Answers
When a cytotoxic T cell is activated, they release proteins that trigger infected cells to undergo apoptosis and/or cytolysis. The given statement is the correct option.
Therefore, the correct option is: Cytotoxic T cells release proteins that trigger infected cells to undergo apoptosis and/or cytolysis.An immune response is a reaction that occurs in the human body against foreign substances and infectious agents such as bacteria, viruses, and fungi.
There are two types of immune responses: innate and adaptive. Adaptive immune responses occur when an immune cell recognizes a specific antigen. Adaptive immunity consists of humoral immunity and cell-mediated immunity. The latter is a type of immune response mediated by T cells. T cells come in two major types, namely helper T cells and cytotoxic T cells.Cytotoxic T cells are specialized white blood cells that eliminate infected or cancerous cells in the human body.
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What is the problem in this article? What solution does the article propose?(Site 1)
Answers
The problem being talked about in the article is the issue of sea turtle bycatch which happens when nets are used to fish.
The solution proposed by the article is that of Turtle Excluder Devices (TED) which allow for sea turtles to escape through flap-like openings and metal bars.
What does the article talk about?The article talks about how the issue of sea turtle bycatch is affecting sea turtle conservation efforts because sea turtles get caught in nets that were laid for shrimp and other fish.
The solution being proferred is a TED which when added to a net, provides a flap-like opening such as metal bars that allow for sea turtles to escape the net.
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Answer:
Explanation:
The problem being talked about in the article is the issue of sea turtle bycatch which happens when nets are used to fish.
The solution proposed by the article is that of Turtle Excluder Devices (TED) which allow for sea turtles to escape through flap-like openings and metal bars.
As the moon moves straight due to inertia, it travels in orbit around the Earth due to _________.
A. free fall
B. the pull of Earth's gravity.
C. the pull of the Sun's gravity.
D. satellites in space.
PLS HURRY ITS DUE IN 19 MINTUES
Answers
Answer:
B. the pull of Earth's gravity
Explanation:
The pull of Earth's gravity on the moon is greater than the pull of the sun's gravity on it because of the distance.

1. What organism that does
cellular respiration will you
include in your aquaponics
system
Answers
Answer:
Fish, Tilapia
Explanation:
Fish can live in the water tank
it releases carbon dioxide , which plants need for photosynthesis
ammonia from fish can also act as fertilizer for plant
If u want specific species, tilapia
can adapt to environment and withstand less than ideal water conditions
resistant to many pathogens and parasites
ad each question completely before writing your answer.
An axon, dendrite, and cell body are the major parts of a (a) nerve (b) neuron (c) stimulus (d) cyton
Answers
Answer:
it is A neuron
Explanation:
may I get brainliest
Option (B.) Neuron
what type of skills might be important in the field?
Answers
Answer:
good leadership, good copanisonship, and good working skills
Explanation:
which treatment for cancer offers the greatest chances for cure
Answers
The most effective treatment for cancer is the one that completely eliminates the cancer cells and prevents them from coming back. This is known as a cure.
Surgery is often the most effective treatment for localized cancers, such as early-stage breast, colon, or lung cancer. Radiation therapy and chemotherapy are often used in conjunction with surgery to increase the chances of a cure.
For cancers that have spread to other parts of the body, a combination of chemotherapy and targeted therapies may be the most effective treatment option.
Immunotherapy, which works by boosting the body's immune system to attack cancer cells, is also a promising new treatment for various types of cancer.
Ultimately, the choice of treatment depends on many individual factors and requires careful consideration by a team of healthcare professionals.
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If a molecule of carbon dioxide is produced inside the mitochondria of a muscle cell, where will it travel before it is exhaled from the body
Answers
Answer:
it will travel to the lungs before it is exhaled from the body
If plasma accounts for 55% of the blood volume and plasma is 90% water, how many gallons of
water could be extracted from an adult female's blood?
Answers
About 45% of the various blood cell types and about 55% of blood plasma make up blood. A pale yellow, slightly hazy liquid blood plasma. Water makes up more than 90% of blood plasma and less than 10%
What is plasma used for in the body?
Your blood's liquid portion, called plasma, makes up 55% of the total volume of your plasma. Plasma circulates throughout the circulatory system and is required for your body to heal from wounds, supply nutrients, remove waste, and prevent infection.
Where can you find plasma?
The majority of your blood is plasma. It accounts for more than half (about 55%) of the entire material. Plasma is a pale yellow liquid that forms when the blood is separated from the rest of it. Plasma transports water.
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Traits are determined by the sequence of nucleotides in DNA
O
True
O False
Answers
Answer: false
Explanation:
what is the advantage of allosteric regulation? how can negative feedback regulate a biosynthetic pathway?
Answers
When the level of the end product is already high, this regulator aids in slowing the pathway.
Does allostery regulate negative feedback?When a biological reaction's byproduct prevents the reaction from continuing, it is said that negative feedback inhibition has occurred. The process of allosteric inhibition involves the attachment of a regulatory molecule to an additional (allosteric) site, which inhibits the enzyme by altering the structure of its active site.
What role does allosteric regulation play in the regulation of metabolic pathways?Allosteric activators can quicken the rate of reactions. The enzyme's active site's affinity for its substrate is increased when they bind to an allosteric site, causing a conformational shift. This quickens the reaction time.
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Does the phrase “Survival of the fittest” refer to an individual (single organism) or a species (group of same organisms)? Why?
Answers
Answer: In 1869 of On the Origin of Species by British naturalist Charles Darwin, which suggested that organisms best adjusted to their environment are the most successful in surviving and reproducing
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any microorganism capable of disrupting normal physiologic body processes is a:
Answers
Any microorganism capable of disrupting normal physiological body processes is referred to as a pathogen. Pathogens can include various types of microorganisms such as bacteria, viruses, fungi, and parasites.
These pathogens have the ability to invade the body, multiply, and cause diseases or infections by disrupting the normal functioning of the body's cells, tissues, and organs. They can interfere with vital processes, damage cells, produce toxins, trigger immune responses, and lead to a wide range of symptoms and health complications. The body's immune system works to recognize and eliminate these pathogens, but in some cases, medical intervention such as antibiotics or antiviral medications may be necessary to combat the infection caused by these disruptive microorganisms.
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Does mitosis start with haploid or diploid cells
Answers
Answer:
Mitosis starts with diploid cells
Explanation:
which of the following characteristics of dna-dependent dna synthesis is not the same for dna-dependent rna synthesis? group of answer choices initiation of synthesis requires a primer. synthesis is catalyzed in the 5' to 3' direction. all of the given answers are the same for both. the process results in phosphodiester bond formation. synthesis requires a template.
Answers
The characteristic that is not the same for DNA-dependent DNA synthesis and DNA-dependent RNA synthesis is that DNA-dependent RNA synthesis does not require a primer for initiation of synthesis.
In DNA-dependent DNA synthesis, a primer is necessary to provide a starting point for DNA polymerase to attach and begin extending the new strand. However, in DNA-dependent RNA synthesis, the RNA polymerase can directly bind to the promoter sequence on the DNA template and initiate synthesis without the need for a primer.
Both DNA-dependent DNA and RNA synthesis proceed in the 5' to 3' direction, with phosphodiester bond formation between nucleotides. Both also require a template strand to guide the synthesis of the new strand. However, the mechanism of initiation is different between the two processes.
Overall, DNA-dependent DNA and RNA synthesis share many similarities in terms of their basic mechanism, but there are some key differences that reflect the unique requirements of each process. By understanding these differences, we can better appreciate the complexity and versatility of the genetic machinery that drives life as we know it.
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The olfactory neurons that make up the first synapse of the sense of smell are structurally classified as
a. Mutlipolar neurons
b. Bipolar neurons
c. Unipolar neurons
d. Efferent neurons
e. Mixed neurons
f. Motor neurons
Answers
Bipolar neurons are the structural classification of the olfactory neurons that make up the first synapse of the sense of smell. b. Bipolar neurons
These neurons have two distinct processes or extensions: one dendrite and one axon. The dendrite receives sensory input from odorant molecules in the nasal cavity, while the axon transmits the signal to the olfactory bulb in the brain. The bipolar structure of these neurons allows for efficient transmission of olfactory information from the sensory receptors to the brain. The other options provided (multipolar neurons, unipolar neurons, efferent neurons, mixed neurons, and motor neurons) do not accurately describe the structural classification of the olfactory neurons involved in the sense of smell.
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3) How far did the ice sheets flow southward during the last
ice age?
15 points nd brainly
Answers
Covered an area of more than 13,000,000 square km 5,000,000 square miles.
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In a food web, what would happen if a secondary consumer were removed.
A. The food web would collapse.
b. The food chain would collapse.
c. The consumer eaten by the secondary consumer would die.
d. Another secondary consumer would would replace the removed secondary consumer.
Answers
In a food web, if a secondary consumer were removed, another secondary consumer would replace it. A food web is a series of organisms that transfer energy in the form of food from one organism to another. Option D is correct.
It's made up of different food chains, which show the transfer of energy from one organism to another.A food chain is a linear arrangement of organisms in which one organism consumes the organism below it in the chain. Producers, primary consumers, secondary consumers, and tertiary consumers are all components of food chains.
In a food web, energy flows from producers to primary consumers, from primary consumers to secondary consumers, and from secondary consumers to tertiary consumers. If a secondary consumer were removed from the food web, the food chain would be impacted. However, the food web as a whole will not collapse.
Another secondary consumer would replace the removed secondary consumer. For example, if a hawk, which is a secondary consumer, were removed, another secondary consumer like an owl would replace it. Option D is correct.
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when somatic cells undergo mitosis, what is the result? 1. daughter cells with identical genetic codes 2. daughter cells with different genetic code
Answers
When somatic cells undergo mitosis, the result is daughter cells with identical genetic codes.
Mitosis is a type of cell division that occurs in somatic cells, which are non-reproductive cells in the body. The main purpose of mitosis is to produce two genetically identical daughter cells from a single parent cell.
During mitosis, the parent cell goes through a series of stages, including prophase, metaphase, anaphase, and telophase, leading to the separation of replicated chromosomes and the division of the cytoplasm. Each daughter cell receives an identical set of chromosomes, which ensures that the genetic code remains the same.
The replication of DNA during the S phase of the cell cycle ensures that each daughter cell receives a complete copy of the genetic material. The duplicated chromosomes align and separate during mitosis, resulting in two daughter cells that have the same genetic code as the parent cell.
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Mushrooms and bacteria are considered
Answers
Answer: Fungus
Explanation:
Answer:
A fungus (plural: fungi or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and molds, as well as the more familiar mushrooms. These organisms are classified as a kingdom, which is separate from the other eukaryotic life kingdoms of plants and animals.
Explanation:
Are fish considered a sustainable resource? Explain.
Answers
How do zoned reserves provide economic incentives for long-term conservation of protected areas?
Answers
Zoned reserves provide economic incentives for long-term conservation of protected areas as zoned reserves may offer a consistent supply of water, hydroelectric power, educational possibilities, and tourism revenue.
A zoned reserve consists of sections of land that have seen little human effect and are encircled by buffer zones, which have experienced little human impact. The little Central American country of Costa Rica has emerged as a global pioneer in the creation of designated reserves. Zoned reserves may offer a consistent supply of water, hydroelectric power, educational possibilities, and tourism revenue.
Protected areas are used to conserve biodiversity and frequently offer habitat and protection from exploitation for endangered and threatened species. In the most intensively managed landscapes and seascapes, ecological processes cannot survive. Protection helps maintain these processes.
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Describe the four sources of evidence for evolution upon which Darwin based his ideas in common descent.
Answers
Answer:
- Fossil record
- Geography
- Embryology
- Comparative anatomy
Explanation:
The four types of evidence for evolution upon which Darwin based his ideas were:
1-The geographic distribution of related species. The theory of evolution states that species evolve in geographic areas that were colonized by their ancestors.
2-The fossil record shows successions of organisms through time
3-Embryology: animal embryos in related species are very similar in the early stages of development but differentiate as they grow, thereby suggesting these species evolved from a common ancestor.
4-Comparative anatomy demonstrates physical and structural similarities between species. The species share anatomical similarities because they descend from a common ancestor (i.e., presence of homologies).
Evolution by Darwin was based on the development of the species from the ancestors. The evidence for evolution are fossils, geography, anatomy, and embryology.
What are the pieces of evidence of evolution?The Darwin theory was based on the evolution of the species from their ancestors. The time period has resulted in the change in the features that are based on natural selection.
The evidence for evolution proposed by Darwin is fossil records, comparative anatomy between the species, geographical changes in the species relation, and the embryonic similarities with the evolution.
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Estimates of current rates of extinction:___.
a. suggest that rates of extinction have globally decreased, but have locally increased.
b. suggest that one-half of all animal and plant species may be gone by the year 2100.
c. indicate that rates may be greater than extinction rates seen in the fossil records.
d. indicate that rates of speciation equal extinction, so an equilibrium has been reached.
Answers
Estimates of current rates of extinction indicate that rates may be greater than extinction rates seen in the fossil records.
What is Extinction?This is referred to as the the dying out or extermination of a species as a result of overexploitation, deforestation etc.
The current rate of extinction however indicate that rates may be greater than the mass extinctions at the close of the Cretaceous period according to fossil records which makes option C the most appropriate.
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