Which of the following are key elements of Darwin’s theory of evolution by natural selection? Highlight all correct answers.

A. genetic variation
B. genetic engineering
C. fitness
D. adaptation
E. independent assortment

Answers

Answer 1
E. Independent assortment

Related Questions

What is the coding region of DNA called? Explain.
a- A gamete
b- A allele
c- A sister chromatid
d- A gene

Answers

Answer:

D-Gene

Explanation:

Because of the protein it get's. When it gets the protein it needs then they develop the gene therapy.

anyone can help me with this

Answers

before I answer this question can you specify

Describe what might happen in the water cycle if
the amount of solar energy entering the Earth
system decreased.

Answers

Without the sun there would be no water cycle, which means no clouds, no water-no weather. And the world’s ocean would be frozen

When the amount of solar energy that enters the system become decreased, what may happen in the water cycle are:

evaporation will reduceclouds won't formprecipitation would dropfreezing will occur

The water cycle can be described as a biogeochemical cycle that depicts how water is being circulated and recycled within, above, and on the earth's surface.

A typical diagram showing a water cycle is attached below.

From the water cycle diagram, we can observe that a vital aspect of the water cycle involves the sun which supplies solar energy that heats up earth.

The solar energy entering earth makes it possible for evaporation of water as vapor which form clouds that leads to rainfall.

The solar energy is also important in melting of ice, thereby converting it to water to goes into oceans for evaporation.

The implication of having an earth system where the amount of solar energy that enters it is reduced is that:

evaporation of water will reduced, clouds will not be able to form, and we won't have enough rainfall, andice would be predominant as low solar energy that is required to melt the ice is reduced.

In conclusion, when the amount of solar energy that enters the system become decreased, what may happen in the water cycle are:

evaporation will reduceclouds won't formprecipitation would dropfreezing will occur

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*PLEASE ANSWER!!! , I DONT GET IT*
When they were first discovered in the late 19th century, xenophyophores were originally classified as

a.) worms.

b.) sponges.

c.) fish.

Answers

i am pretty sure the correct answer is b.) sponges :]

The concern over green house gases is that by increasing their concentration in the atmosphere, these gases will reduce the amount of Oxygen in the atmosphere
making life more difficult to sustain for organisms like ourselves (organisms with high metabolism).

True

False

Answers

False ( I believe so)

The allele for freckles, F, is dominant among humans. If a woman with freckles (FF) and a man without freckles (ff) have children, what are the possible genotypes of the children?

Answers

Answer:

Ff

Explanation:

F - freckles

f - no freckles

FF x ff

      F       F

f    Ff        Ff

f    Ff       Ff

100% with the dominant allele so 100% chance the children will have freckles

---> the possible genotypes are only Ff

Answer:

Ff

Explanation:

100% of the children will have freckles and will have the genotype Ff. If you draw out the punnett square, you will see that an F and an f will be in each box. If this is still confusing, I recommend looking up a video of how to use a punnett square, it will make sense. :)

please help asap it is about mitosis :) !

Answers

Answer:

I think its metaphase, tell me if I am wrong:)

Explanation:

the chromatids are pulled by motor proteins along the spindle apparatus toward the center of the cell and they line up in the middle or equator of the cell

Suggest why red onion is often used when carrying out this investigation

Answers

Answer:

the cells in the onions are already dyed also it has a contrastarctary character hope this helps

Explanation:

Why do metamorphic rocks form at subduction zones?

Answers

Answer:

the moving of the plates sliding past each other causes the rocks coming in contact with the descending rocks to change.

Explanation:

hope this helps! :)

Egg and sperm cells are each ______ because they fertilize each other to form a zygote with a complete human genome

haploid
diploid
tetraploid
somatic cells
germ cells

Answers

The answer is haploid

What is true of the population shown in this graph?


A) The population has increased until it reached its carrying capacity.


B) The population is not changing much over time.


C) The population is growing unchecked.


D) There are many factors at work to control the population.



Ω Entity001 And Project Ω

Answers

Answer:

C.

Explanation:

It is C. because there are no numbers for you to see how many people there are and since the line in the graph went up super high it means the population is growing unchecked since there arent any numbers on the graph to prove it was checked.

What type of rock forms due to heating and cooling? A. Slate B. Metamorphic C. Igneous D. Sedimentary​

Answers

Answer:

Igneous rocks I think ^^

Answer:

I think is C...........

Anna studies the color of her bedroom wall using different lights. In sunlight, she sees that the wall is white. Anna darkens the room and shines a beam of light that includes all the wavelengths of visible light onto the wall. In this light, what's the wall color that Anna sees?

Answers

Answer:

White

Explanation:

The light is measured by its wavelength, generally in nanometers (nm), and visible light has a wavelength spectrum of 400 to 700 nm. Sunlight can be divided into three components: 1-visible light, 2-ultraviolet (UV) light, and 3-infrared radiation. Since white light is visible light (this color contains all the colors of the rainbow) and sunlight includes the visible light of all wavelengths, the object will look white under this light spectrum.

Answer:

white

Explanation:

The process in which two organisms of different species provide health benetits to each other characterizes which of the following?

Community
ecology
ecosystem
Mutualism

Answers

Answer:

Mutualism

Explanation:

It's a mutualistic symbiotic relationship! :)

Which causes genetic variations and can result in different alleles?

predation rate
random mutations
competition
environmental changes

Answers

Answer:

Genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).

Definitions:

Predation rate

is the annual mortality within. a population directly attributable to predation; it represents the level of. successful predator attacks that the animals are unable to control after they. have implemented their antipredator  strategies. Predation risk, on the.

random mutations:

What is commonly called "random mutation" does not in fact occur in a mathematically random pattern. The process of genetic mutation is extremely complex, with multiple pathways, involving more than one system. Current research suggests most spontaneous mutations occur as errors in the repair process for damaged DNA.

competition:

the activity or condition of competing.

environmental changes:

Examples of these global environmental changes include climate change, freshwater shortages, loss of biodiversity (with consequent changes to functioning of ecosystems), and exhaustion of fisheries.

Genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis.

Predation rate is the annual mortality within. A population directly attributable to predation; it represents the level of. successful predator attacks that the animals are unable to control after they. have implemented their antipredator  strategies. Predation risk, on the.

"Random mutation" does not in fact occur in a mathematically random pattern. The process of genetic mutation is extremely complex, with multiple pathways, involving more than one system. Current research suggests most spontaneous mutations occur as errors in the repair process for damaged DNA.

Learn more about Genetic variation on:

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The ______
phases appear to grow.
The ______
phases appear to shrink.


(Talking about moon phases)

Answers

Answer:

Explanation:

The First Quarter Phase Appear To Grow

The Last Quarter Phase Appear To Shrink

Transcribe DNA bases GCA TTA GAT TTA into mRNA, choose the answer

CGU AAU CUA AAU
CGT AAT CTA AAT
GCA UUA GAU UUA

Answers

The answer is the second option
It’s CGU AAU CUA AAU

How many types of rocks can form from the rock cycle?
1
2
3
4

Answers

Answer: 3 types

Explanation: igneous, sedimentary and metamorphic.

Answer:

3 types

Explanation:

igneous sedimentary and one more

;

PLZ HELP ILL GIVE U BRAINLYIST(science)

Answers

Answer:

Explanation:

c the answers c

Predict what will happen to this ecosystem.

Answers

Answer:

I think that since the trees and grass will be burnt down, the prey animals (Bunnies, insects, etc.) will have nothing to eat and will go extinct, then the preditors will not make it because of the extinction of prey, finally us humans will not make it because there is no food

Explanation:

please do not copy this answer exacly, because you will get an F for plagarism, so please be careful, and have a blessed day amigo!

Transpiration is the _____ of water through the leaves of plants.

Answers

Answer:

loss of water :)

Explanation:

Answer:

Movement

Explanation:

Water moves out of the leaves of the plants.

Have a great day

what's the difference between the structure of a nucleic acid and the structure of a protein? ​

Answers

There are two principle differences between the structures of proteins and nucleic acids:

Monomer Composition
Eventual Conformation

The first involves the chemical makeup and bonding pattern of individual monomers of each polymer, those monomers being amino acids in proteins and nucleotides in nucleic acids. Amino acids consist of an amine and carboxyl functional group along with a side chain (commonly referred to as an R group), with the amine and carboxyl groups involved in “linking.” Nucleic acids are of quite a different chemical makeup, composed of a five-carbon sugar and phosphate group backbone, both involved in chaining, from which protrudes a nitrogenous base.

The second involves the “destiny” of the polymer in regards to conformation. A protein’s eventual conformation is always consequential, resulting from interactions between the R groups of its amino acid monomers. Nucleic acids, on the other hand, possess the notable structure of strands. RNA’s case is one of a single strand, while DNA’s is a double-helical arrangement of two.
(I know this is a lot of info but I hope it helps :) )

You can test a hypothesis by conducting an experiment.

True
False

Answers

Answer:

true

Explanation:

Answer:

true

Explanation:

an experiment will tell you if your hypothesis was correct or not

a unicellular organism splits into two parts during​

Answers

Answer:

fission

Explanation

Where does asexual reproduction take place? When single-celled organisms (like bacteria and protozoa) just split (or break) into two identical halves during cell division, leading to the creation of new organisms is called fission.

Hope fully this is correct.

Answer:

amorba

Explanation:

unicelluler organism that splits

Which grouping lists only minerals?
A.obsidian, gypsum, corundum
B.pyrite, halite, brass
C.quartz, coal, basalt

Answers

Answer:

C

Explanation:

i think

Answer: C

Step by step:

Define Chromosome, gene, and chromatid. Draw a picture of a chromosome and label it. Write a brief summary of both videos (at least 5 sentences each). From the second video make sure you include a chart that shows the differences between DNA and RNA.

Answers

Answer:

i can only define the terms for you.

Explanation:

chromosome - a threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes.

chromatid - each of the two threadlike strands into which a chromosome divides longitudinally during cell division, each containing a double helix of DNA.

gene - a distinct sequence of nucleotides that forms a part of a chromosome, the order of which determines the order of monomers in a polypeptide or nucleic acid molecule which a cell or virus that may synthesize

A cell undergoing meiosis has a defect and cannot do crossing over. The cell
completes the rest of meiosis successfully and produces four sperm cells.
Which of the following describes the correct outcome of this defect?
Select one:

The sperm cells will all be the same.

The sperm cells will be identical to the parent cell.

The sperm cells will have reduced genetic variety but will still be different.

The sperm cells will form two pairs of identical cells. Cells in a pair will be different from
the other pair

Answers

Answer:

Option #3

Explanation:

That is the basic terminology that us used during meiosis.

The statement that best describes the correct outcome of this defect is the sperm cells will all be the same. Thus, the correct option for this question is A.

What is Meiosis?

Meiosis may be defined as a type of cell division that significantly produces four daughter cells that are genetically non-identical to the parental cells. These daughter cells are haploid in nature. Germ cells or sex cells are generally produced by this mechanism.

The cells that are formed as a result of meiosis have half the amount of chromosomes as compared to the parental cell. This is because when the germ cells of two different origins fuse together, they will form complete chromosomes.

The egg cells or sperm cells that are produced by this process of cell division will all be the same with respect to the number of chromosomes and physiology along with function.

Therefore, the sperm cells will all be the same is a statement that best describes the correct outcome of this defect. Thus, the correct option for this question is A.

To learn more about Meiosis, refer to the link:

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A major cause of genetic variation within a species is the result of...​

Answers

Answer: mutation

Explanation:

If my cultures are suffering severely due to alkaloid production and accumulation in the medium. In that case, how can i overcome this problem?

Answers

Explanation:

Alkaloids are essentially natural compounds, and can mostly be used for pharmaceutical purposes. Natural habitats of different alkaloid plants have been destroyed for  cultivated.

Many alkaloids are pharmacologically active and are useful as a message for several decades because a wide range of species, such as animals and bacteria, produce them.

Secondary and accumulating metabolites are related to different cell types such as epidermis endodermis pericycle phloem parenchyma, components, accompanying cells etc.

How is lactase an example of fitness in humans?

Answers

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Evolutionary advantages. Lactase persistence is a text-book example of natural selection in humans: it has been reported to present stronger selection pressure than any other known human gene. However, the specific reasons as to why lactase persistence confers a selective advantage "remain open to speculation".

WHAT THEY DO IN HUMAN BODY?

Lactase breaks down the lactose in food so your body can absorb it. People who are lactose intolerant have unpleasant symptoms after eating or drinking milk or milk products. These symptoms include bloating, diarrhea, and gas. Lactose intolerance is not the same thing as having a food allergy to milk.

In pastoralist populations, individuals with the lactase-persistence mutations were more likely to survive, reproduce, and pass on their alleles than people without the mutations, especially in times of famine.

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Hope It Helps!

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