Answer:
A is the answer
Explanation:
I'm just guessing
Genetic variation exists in a population. Some of the genetic variation results in different phenotypes. The phenotypes that enhance survival are called adaptations. So, the correct option is A.
What is Genetic variation?Genetic variation among members of the same species is called genetic variation. This variation may be due to variations in gene expression, DNA sequence and epigenetic changes. Mutation, genetic recombination, and genetic drift are causes of genetic variation, which can be altered by environmental variables including exposure to chemicals or climate changes.
Genetic diversity is important because it gives natural selection a starting point to work from, helping organisms to adapt and change over time. There is genetic diversity within a population. Different phenotypes are the result of some genetic variation. Adaptations are traits that improve survival.
Therefore, the correct option is A.
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Your question is incomplete, most probably the complete question is:
Natural selection, adaptations, genetic variation, and population evolution are all related in terms of changes in phenotypes over time. Evaluate which statement appropriately describes the relationship between the concepts of natural selection, adaptations, genetic variation, and population evolution and select the best choice.
1. Genetic variation exists in a population. Some of the genetic variation results in different phenotypes. The phenotypes that enhance survival are called adaptations. Individuals with well-adapted phenotypes are more likely to survive and reproduce, leading to population evolution over generations.
2. Adaptations exist in certain individuals in a population. The increase in adaptations causes an increase in genetic variation. The adaptations that enhance survival lead to larger populations, which further increases genetic variation. Individuals with well-adapted phenotypes are more Likely to survive and reproduce, leading to population evolution over generations.
3. Genetic variation is high in a population, but random events cause it to decrease. Populations with fewer individuals and lower genetic diversity are able to undergo natural selection when selective pressures are high. The increase in selective pressure causes an increase in adaptations that are better suited for survival This results in an evolutionary change of a population.
4. Selective pressures exist in nature and cause changes in a population. Populations with high selective pressures have higher rates of genetic change, leading to an increase in genetic variation, Increased genetic variation leads to some individuals having well-suited adaptations. The presence of these new adaptations is evidence that the population haschanged, or undergone evolution.
A soil sample is 25 percent sand, 55 percent clay, and 20 percent silt. Use the following soil texture triangle to determine the type of soil present in this sample.
Clay
Silty loam
Sandy clay
Sandy clay loam
Answer:
Clay
Explanation:
Answer:
a: sample containing 30 percent sand, 35 percent clay, and 35 percent silt
Explanation:
the two pathways fundamentally involved in the physiological response to stress are
A. HPA and CRH
B. SAM and PVN
C. SAM and HPA
D. CRH and ACTH
Answer:
SAM and HPA
Explanation:
The physiology of stress has two components. One in which is a fast response meditated by the SAM axis, and one which is a slow response meditated by the HPA axis.
What is the haploid number for the Tasmanian devil?
3. Shows like Sesame Street are part of the public health model of service delivery.
O True
O False
4. Which model of service delivery would focus most on getting a disabled person back into the workforce by focusing on what skills they still have or can develop?
O Medical model
O Public health model
O Social service model
O Human service model
Answer:
4. True
5. Social service model
What is the benefit of this complementary nature of DNA?
-It helps in controlling the amount of protein produced by the cells.
-It helps in storing all the information required for the cell to function efficiently.
-It helps in the synthesizing of two new identical DNA strands from each parent strand
-It helps in the unwinding of DNA allowing for the formation of chromosomes during mitosis
The complementary nature of DNA rule ensures that only some particular base pairing are allowed and the DNA strands are complementary to each other.
The benefit of this complementary nature of DNA is that it helps in the synthesizing of two new identical DNA strands from each parent strand.
In DNA replication, the complementary nature of DNA ensures that following the production of new identical DNA strands, the composition of the new strands produced is intact and identical in composition.Learn more about the complementary nature of DNA: https://brainly.com/question/25674032
A rise in __________ released from the sarcoplasmic reticulum allows actin to bind to myosin and cause a contraction, which requires __________ energy.
A rise in CALCIUM released from the sarcoplasmic reticulum allows actin to bind to myosin and cause a contraction, which requires ATP energy. ATP is the energy coin of the cell.
Adenosine triphosphate (ATP) is the energy coin that cells use to carry out many metabolic reactions (e.g., reproduction, motion, differentiation, etc).
The sarcoplasmic reticulum is an organelle located inside muscle cells similar to the smooth endoplasmic reticulum.
This organelle (sarcoplasmic reticulum) acts to store calcium which is required during muscle contraction.
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Mutations are not always negative. Explain why this statement is true. Provide two reasons using examples to support your answer.
which two organisms are closely related?
While orangutans and gorillas are in the great ape family, humans are most closely related to two other species in the family: bonobos and chimpanzees.
Carry learning!
study hard!
Brainliest please thank you!
Answer:
orangatangs and gorrilas are a prime example of close inheritance
Explanation:
These two species are the two closest related species
What characteristics in a human pedigree suggest a mitochondrial location for a mutation affecting the trait
Answer:
maternal inheritance
Explanation:
the differing levels of expression of the mutant phenotype in different progeny
any body come with me for test
1. Choose the correct answer.
_____ are stronger at the epicenter of an earthquake.
A) Lava flows
B) Continent currents
C) Hot spots
D) Seismic waves
Answer: I think the answer is d sorry if its wrong.
Explanation:
18.
Which of the following would be an example of an animal being in the lower limit
of tolerance?
a. A shark in warm water.
b. A bird in a tree that has everything it needs.
C. A frog being in water that is too cold to maintain homeostasis.
d. None of the above
Answer:
I think it would be A.
Guys should I cut my hair
Explanation:
why ?????
Answer:
for me I will say no because you will not be as fine as now and why do you want to cut your hair
What is the most likely conclusion the botanist can make about the virus that is found to be infecting her orchids
Answer:
botanist sees that some of her orchids with a black fungus growing on their leaves also have small rotting spots, while other orchids in the atrium that lack the fungus appear healthy. What is the most likely conclusion the botanist can make about the virus
Three plants are grown in the same environmental conditions with equal sunlight, water, and space to grow. One plant grew to have a purple flower while the other two grew white flowers. What is the most likely conclusion that can be made for the change in flower color?(1 point)
Genetic factors caused environmental changes that caused the differences in flower color.
Genetic factors caused environmental changes that caused the differences in flower color.
Genetic factors caused the differences in flower color.
Genetic factors caused the differences in flower color.
Environmental factors caused a genetic mutation that caused the differences in flower color.
Environmental factors caused a genetic mutation that caused the differences in flower color.
Environmental conditions caused the differences in flower color.
Environmental conditions caused the differences in flower color.
The most likely conclusion that can be made for the change in flower color is that genetic factors caused the differences in flower color.
According to this question, three plants are grown in the same environmental conditions with equal sunlight, water, and space to grow.
However, despite the uniformity in the environmental conditions received by each plant, one plant grew to have a purple flower while the other two grew white flowers.
This difference in flower color is likely caused by the inherent genetic factors of each plant rather than environmental factors because they were treated the same.
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Answer:
Genetic factors caused the differences in flower color.
Explanation:
Write a one-paragraph (5-7 sentences) reflection on the dangers of drugs and how they can interfere with you achieving your goals.
Answer:
They can reflect on getting a Job and doing good in life, they could kill a person without them even knowing it. The dangers of drugs Is that they can mess up your life or it could make you so messed up things to yourself. Drugs are bad because they could make life worse, and they could hurt people around you or people you love, drugs can lower your chances of achieving your goals because you could easily get fired or you can lose your mind enough just not to know what you're doing.
Explanation:
6. Identify the main role of cellular respiration? *
Which of the following human actions negatively affect the water cycle by increasing evaporation?
Answer: Hydroelectricity
Explanation: None Sorry
Burning of fossil fuels adversely impacts on the water cycle that adversely affect the climate on Earth.
Human activity such as the burning of fossil fuels in vehicles and burning of wood for cooking have adverse effect on the earth's atmosphere. This burning of fossil fuels increase the temperature of the earth leads to global warming.
Raising the Earth's temperature means that there is an increase of evaporation, melting of glaciers and sea ice which imbalance the water cycle leads to flood and drowning of coastal regions of the earth so we can conclude that burning of fossil fuels adversely impacts on the water cycle that adversely affect the climate on Earth.
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Organisms that live where there is no
light use a process that converts energy
from chemicals into sugars. What is it
called?
A. photosynthesis
B. dark reactions
C. chemosynthesis
D. chemical bonding
Answer:
c
Explanation:
Answer:
c
Explanation:
Chemosynthesis is the synthesis of organic compounds by bacteria or other living organisms using energy derived from reactions involving inorganic chemicals, typically in the absence of sunlight.
HELPPPPPPPPPPPPPPPP
HELPPPPP
Answer: 99% sure its 50
Explanation:
Answer:
Explanation:
I think 100
This is for biology, I’ve been having some trouble on it please help!
Answer:
um you have to be more clear plssssss
Using the terms and phrases provided below, complete the concept map showing the characteristics of cells.
Answer:Di consider the above attached file as an answer to this question.
ありがとうございました!
How do i write a good hypothesis
Answer:
use "if...then...because"
Explanation:
a good way to write a hypothesis is using "if, then, because" statements because it fully explains your idea. you also need to make sure that your hypothesis is testable and realistic.
example/
Jimothy is testing if jazz music effects bee honey production. he writes this statement:
If jazz is played near a bee hive while producing honey, then the bees will produce more honey because the smooth music will raise their dopamine levels so that they become happier and therefore faster and more productive.
Answer:
I will write some tips in my explanation!
Explanation:
After formulating wh questions, it's time to form a hypothesis or an educated guess, but how do we do this?
First, you must gather the knowledge you already know; ad back it up with something that has happened like a study, article, etc
Example: It is a known fact that distilled water does not contain impurities, in fact, many distilled water companies boast about their water being clean and safe.
This will be the base of your hypothesis, and from here, just add the knowledge of which you know that can make up a well supported hypothesis, which you will then test.
Example:
It is a known fact that distilled water does not contain impurities, in fact, many distilled water companies boast about their water being clean and safe. Because distilled water is free of impurities, we can say that it cannot conduct electricity, but if we add salt to distilled water, the water will then be able to conduct electricity because...
That's my tips! If you are satisfied, please give a thanks or rate it! :D have a nice day
How many genes are shared by all viruses?
Answer:
200 approximate
Explanation:
depends how many in common
Applying the systems thinking techniques, outline the practical steps that can be taken to address drought
Some practical steps to address drought may include the implementation of efficient water usage techniques, the protection of vegetation, and the use of methods to retain moisture in the soil.
What is a drought?A drought is classified as the shortage or absence of water for a prolonged period of time in a region. These can be caused by a prolonged lack of rainfall.Other factors include poor water management and lack of vegetation.Methods to avoid droughts.The planting and protection of vegetation, primarily those adapted to dry environments, is important in preventing drought.Furthermore, the correct implementation of efficient water usage techniques can aid in preventing drought by limiting the amount of water that is wasted. Lastly, the use of mulch and other water retainers can be an effective method in keeping the soil moist and aids in the previous two methods.Therefore, we can confirm that the most effective ways to avoid droughts are to practice efficient water use so as to not waste water, to plant and protect vegetation, and to use mulch and other moisture-retaining methods to keep the soil from drying.
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PLEASE HELP!!! 63 points.
Use the molecular structures to predict which of the six solutions will test positive for glucose. Write your prediction in the answer space. Provide the reasoning behind your prediction.
Answer:
need the picture
Explanation:
how many times do I have to repeat myself -_-
if you add 63 points each person will only get 32 points so add 63x2 instead anyways I cannot solve the answer without a picture :/
bacteria having cluster of flagella at both poles of the cell is known as
Bacteria having cluster of flagella at both poles of the cell is known as Amphitrichous bacteria.
WHAT ARE AMPHITRICHOUS BACTERIA?Amphitrichous bacteria are types of bacteria that have flagellum on each of two opposite ends. An example of amphitrichous bacteria is Alcaligenes faecalis.
In this type of bacteria, only one flagellum functions at a time. This causes the bacterium to reverse course.
Therefore, bacteria having cluster of flagella at both poles of the cell is known as Amphitrichous bacteria.
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So why the gametes in a single plant are genetically different from each other and also different from the cells in the rest of the plant
Is my answer correct ?
Explanation:
They have unique combinations of chromosomes
They have unique combinations of chromosomes.
What are gametes?
In organisms that reproduce sexually, a gamete is a haploid cell that unites with another haploid cell during fertilization Gametes, commonly known as sex cells, are an organism's reproductive cells.
A female is any individual that generates the bigger kind of gamete—called an ovum—and a male creates the smaller type—called a sperm—in species that produce two morphologically distinct forms of gametes, and in which each individual produces only one type.
The flagellum, a tail-shaped feature that enables the cell to propel and move, is what makes sperm cells, or spermatozoa, tiny and motile. On the other hand, each egg cell or ovum is sizable and non-motile.
Therefore, They have unique combinations of chromosomes.
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Why can't we just use centuries, decades
help :(
Which of the following is the most accurate example of supply and demand?
The consumer cost for roses drops when fewer roses are available for sale.
The price of rice increases as more of it is produced.
The consumer cost for roses drops when fewer roses are available for sale.
The large amount of unemployed farm laborers drops farm wages.
Which of the following is the most accurate example of supply and demand?
The consumer cost for roses drops when fewer roses are available for sale.Explanation:What is demand?
Demand refers to consumers' desire to purchase goods and services at given prices. Demand can mean either market demand for a specific good or aggregate demand for the total of all goods in an economy.The consumer cost for roses drops when fewer roses are available for sale.
Explanation:-
Demand means the asking of consumers for the product.If demand of any product increases among consumers the price also increases.If demand of any product decreases among consumers the price also decreases .[tex]\\ \sf\longmapsto Demand\propto Product [/tex]
Question 1) Discuss the types of trace elements in organic compounds? ( Will Mark Brainliest).
Answer:The trace elements are those organic compounds that are needed for the growth and maintenance of plants from the soil in small amounts.
Explanation:
The types of trace element which are also called non-essential elements include:
Copper: This takes part in chlorophyll and seed production.
Boron: This takes part in the maintenance of structural and functional integrity of biological membranes.
Molybdenum: This is required for the synthesis and activity of the enzyme nitrate reductase used in the synthesis of amino acids in plant cells.
Manganese: This sustains the metabolic roles within different plant cell compartments; and
Zinc: This is responsible for the synthesis of certain proteins.
