Base your answers to question 8 on the information below and on your
knowledge of biology. Evolution leads to changes in how frequently
certain traits appear in a population. 8) Describe how the process of
natural selection can result in an increase in frequencies of certain traits
found in a population *

Answers

Answer 1

Answer:

Natural selection refers the effect of selection pressure on the frequency of allele in the population.

Generally,natural selection increases the chances that  certain allele will survive for long period of time, and therefore the chances of successive reproduction. Therefore organisms with these alleles with higher chances of reproduction have high selective advantages, and therefore better adapted to withstand the selective pressure and therefore undergo directional selection within the organisms in the population.

Consequently, they are better reproduced, and thus well populated.The r frequency of their traits is well  expressed  from generation to generation, and therefore naturally selected, and evolve over long period.


Related Questions

Imagine that all plant life on earth was suddenly wiped out. What effect would this have on the atmospheric gases and how would this ultimately affect earths climate?

Answers

plants provide the earth with lots of energy and trees provide oxygen, so having plants wiped out would basically just wipe out everything that’s living. the climate levels would also go down as there is no oxygen or energy to provided to keep the life cycle continuing.

In the process of photosynthesis, plants use carbon dioxide (CO2), water (H2O), and light energy to produce a sugar (C6H12O6) and oxygen (O2). In the process of aerobic respiration, animals and plants release energy from sugar and oxygen and produce carbon dioxide and water. The chemical equations that describe these reactions look like this:


6CO2 + 6H2O + light C6H12O6 + 6O2 C6H12O6 + 6O2 6CO2 + 6H2O + energy


How do these equations explain why the total amount of O2 and CO2 remains the same?

Answers

They are the same type just spit up

Answer:

During photosynthesis, to form 1 molecule of glucose, 6 molecules of CO2 is needed to be used as a reactant. 6 molecules of O2 is released as a by-product.

However, during aerobic respiration, to hydrolyse 1 molecule of glucose, you will need 6 molecules of O2 as a reactant, releasing 6 molecules of CO2 as by-product.

Essentially, the total amount of CO2 and O2 remains the same assuming the rate of aerobic respiration is the same as the rate of photosynthesis, resulting in no net gain or loss of both CO2 and O2 in the atmosphere.

Which of the following statements best describes the formation of volcanoes?
A.
At a transform plate boundary, the crusts slide against each other to form magma by frictional heat.
B.
At a convergent plate boundary, the oceanic crust is pulled beneath the continental crust, where magma forms and moves upward.
C.
At a divergent plate boundary, the pressure of seawater rushing into the oceanic crust rift creates a volcano.
D.
At a convergent plate boundary, the continental crust collides with another continental crust to form volcanoes.

Answers

Answer:

B). At a convergent plate boundary, the oceanic crust is pulled beneath the continental crust, where magma forms and moves upward.

Explanation:

Volcano is described as the fissure in the crust of the earth through which the molten rock, lava, or hot gases are allowed to escape from this chamber. The second option most appropriately states that 'the oceanic crust is pulled beneath the continental crust at a convergent plate boundary where the formation of magma takes place and makes it to the surface(through eruption in the form of lava).' The process can have both the creative as well as destructive impacts as it brings a lot of useful minerals that makes the soil rich and fertile while on the other hand, the ash is fatal for the environment. Thus, option B is the correct answer.

The statement which best describes the formation of volcanoes is: B.  At a convergent plate boundary, the oceanic crust is pulled beneath the continental crust, where magma forms and moves upward.

A volcano can be defined as a mountain or hill that has a large circular or conical hole at the top through which volcanic ash, rock fragments, gases, dust, hot lava, steam etc., are expelled from the vent of a planetary-mass object, either at regular intervals or continuously.

A convergent plate boundary refers to a boundary where two (2) plates move towards each other, thereby, resulting in subduction or collision.

As a result of the oceanic crust being pulled beneath the continental crust at a convergent plate boundary, molten magma are formed and then moved upward as volcanoes.

In conclusion, the collision between two (2) plates as a result of subduction causes an oceanic crust to be forced underneath the mantle, thereby, forming volcanoes.

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Which process connects glycolysis and the citric acid cycle?
A) lactic acid formation
B) acetyl CoA formation
C) electron transport
D) Krebs cycle

Answers

Keens cycle connects glycolysis and the citric acid cycle.

Answer:

c

Explanation:

what are malpighian tubules

Answers

Answer:

a tubular excretory organ, numbers of which open into the gut in insects and some other arthropods.

(oxford languages supplied the definition)

cross a heterozygous individual with a homozygous recessive one determine the genotype ratio and phenotype ratio of their offspring

Answers

Answer:

Let's have our alleles be J = dominant, j = recessive. And for fun let's make the dominant phenotype black coat, the recessive brown coat.

Heterozygous x homozygous recessive

   = Jj x jj

Punnett square:

       J        j

j      Jj        jj

j      Jj        jj

Genotypic ratio: 2 Jj : 2 jj, or a one-to-one ratio of Jj to jj.

Phenotypic ratio: 2 black : 2 brown, or a one-to-one ratio of black to brown.

I need the answer ASAP :(

Answers

Answer: A.

Explanation: If you take tree 1 for more fruit and mix it with tree 3 for disease and drought resistance then you'll have the perfect crop!

The first correct answer gets brainliest please help!
In December, a city in the Southern Hemisphere has warm weather all month long. What causes this to happen?
The city experiences fewer hours of daylight.
The city is experiencing a winter solstice.
There is a high concentration of the Sun’s rays in that region.
The Sun reaches its highest point in the sky during this month.

Answers

Answer: There is a high concentration of the Sun’s rays in that region.

Answer:

There is a high concentration of the Sun’s rays in that region.

Explanation:

What type of sustainable development encourages enjoyment and conservation of biodiversity and habitats?
a.
Solar energy
c.
Ecotourism
b.
Organic farming
d.
Wind farming

Answers

I believe is organic farming sorry if it’s wrong

Wetlands provide all of the following benefits EXCEPT


1. a habitat for birds animals and endangered plant and animal species

2. protection against the wind and waves of storms coming in from the ocean

3. the trapping of pollution in the air that is moving towards the ocean

4. the storage of flood water before it overflows and causes damage

Answers

Answer:

I am not sure but I think it is 2

Wetlands provide all of the following benefits EXCEPT - 3. the trapping of pollution in the air that is moving towards the ocean.

Wetlands

Wetlands associated with streams and rivers slow down floodwaters by acting as giant shallow pans. Water flowing into these pans loses speed and spreads out.

It provides many benefits:

food and habitat for fish and wildlife including threatened and endangered species,water quality improvementflood storageshoreline erosion controleconomically beneficial natural products for human use

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Which component of roots is a differentiating region?
A. Stele
B. Cork

Answers

Answer:

if im mistaken, is it not apical meristem?

A. Stele

Explanation:

The stele is located in the region of differentiation. "It is found at the center of the root, bound by the pericycle. It contains the vascular tissues, xylem, phloem, and cambium."

Cork and apical meristems are undifferentiation and responsible for primary and secondary growth respectively.

Edmentum confirmed.

3. If a daughter has an X-linked recessive disorder, such as color-blindness, she inherited the
trait from
a. her mother
b. her father
c. both parents
d. neither parents

Answers

Answer:

She inherited the trait from C: both parents.

Explanation:

The daughter, being female, has the chromosomes XX. Since the disorder is recessive, both of the chromosomes need to have the disorder's allele in order for it to activate. The daughter's chromosomes can be labeled as X(c)X(c); where the c stands for the color-blindness allele. She needs one X chromosome from the father, and one X chromosome from the mother. Both of these chromosomes contained the (c) allele, as said before, so the mother has one X(c) and the father has one X(c). This means that she inherited the trait from both parents. The final answer is C.

How do urban gardens bring us closer to the food on our plate, to nature, and each other?

Answers

Answer:

It’s a way for us to be able to talk to each other without it being awkward.

Explanation:

Urban gardens are a way for us to be able to work and talk together it’s a good chance for us to befriend our neighbors. They also help as a learning center it provides the opportunity to learn from the other people around us.

A biologist found an assymetrical organism. A part of the organism was injured, but it was able to repair itself through regeneration. Because the organism is assymetrical and it was able to regenerate it's probably an amphibian, and belongs to the phylum (1. Porifera, 2. Mollusca, 3. Annelida)

Answers

Answer:

3. Annelida)

class of organisms

Explanation:

because the organization is resistant to all forms of things

can we say food chain is a sequence of eating and being eaten to transfer energy

Answers

Answer:

Yeah, Its a cycle of energy.

Answer: food chain duhhhh

Sometimes the moon looks like a crescent. At other times, the moon looks like a half circle. What makes it possible to see the surface of the moon from Earth?

Answers

Answer:

the sun

Explanation:

the sun gives us light to see other objects in space

Sometimes the moon looks like a crescent. At other times, the moon looks like a half circle. the sun  makes it possible to see the surface of the moon from Earth as sun gives us light to see other objects in space

what are the features of sun ?

The Sun is the largest object in our solar system, where its volume would need 1.3 million Earths to fill it whereas gravity holds the solar system keeping everything from the biggest planets to the smallest debris.

The core is the hottest part of the Sun where the temperatures 27 million degrees Fahrenheit and its from its powerful eruptions to the steady stream of charged particles influences the nature of space throughout the solar system.

it consist about 70% hydrogen and 28% helium by mass, the outer layers of the Sun exhibit differential rotation like at the equator the surface rotates once every 25.4 days where as near the poles it’s  about 36 days.

the Sun is not a solid body like the Earth, the Sun’s core The temperature is 15.6 million Kelvin and the pressure is 250 billion atmospheres and  the Sun’s density is more than 150 times that of water.

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What is most unusual about parasites

Answers

I think it’s how they are inside and get stuck

Answer: pls mark me branniest

Explanation:

It depends on its host for survival. Without a host, a parasite cannot live, grow and multiply. For this reason, it rarely kills the host, but it can spread diseases, and some of these can be fatal. Parasites, unlike predators, are usually much smaller than their host and they reproduce at a faster rate.

Genes often contain large regions that are NOT included in translation. These sections are called

Answers

Answer:

Non-coding regions

Explanation:

Genes are segments of DNA that undergoes expression into functional products called PROTEIN. However, these genes contain both the parts or regions that encode proteins and those that don't. The part that encodes proteins are called coding sequences while those that don't encode proteins, which make up the bulk of the gene are called Non-coding regions.

When a gene undergoes expression, it is first transcibed into an RNA molecule, then translated into proteins. The coding regions of the gene will be translated while the non-coding regions will be spliced out

(introns) post-transcriptionn or be used to make RNA.

What happened when the Argentine ants and the red imported fire ants went to war with each other in the United States?

Answers

Answer:

They both were fighiting

Explanation:

who job is it to store nutrients,water, and waste in plant cell

Answers

Answer:

The answer is vacuoles.

Explanation:

It as known as the organelle to have storage in the cell. Vacuoles store water, food, and waste. ^_^

Answer:

Plumer i guess

Explanation:

1. What are three examples of diseases caused by bacteria?

Answers

1. Cholera
2. Pneumonia
3. Meningitis

Answer:

meningitis, pneumonia, and  cholera

What evidence does Dr. White use to describe the species Ardi as “neither a chimp, nor …human.”

Answers

Answer:

It means that the anatomical characteristics found by Dr. White, are different enough for him to affirm that what he found does not belong to the species of the Chimp or to the human being.

Explanation:

This question refers to the 4.4 million-year-old partial skeleton of Ardipithecus ramidus, which Dr. Tim White and his colleagues discovered in 1994. Upon realizing that this skeleton, possibly belonged to a primate, everyone was caught up in the research, thinking that it could be an ancestor of human beings, however, the anatomical characteristics of this skeleton, diverged greatly from those found in Chipanzé skeletons and human skeletons, which made Dr. Tim conclude that the skeleton did not belong to any of these two species and indicated a different species.

PLZ ANSWER!!! Water covers the majority of Earth's surface and occurs in various forms.

Which option correctly orders these sources from the greatest amount of water to the least amount of water? (put it in order)

1. lakes and streams
2. frozen in ice
3. ocean
4. groundwater

Answers

Answer:

3,2,4,1

Explanation:

The answer is 3, 2 , 4 , 1

Coral reefs protect beaches and shorelines from damage caused by__?
A.pollution
B.waves
C.humans
D.other organisms

Answers

Answer:

Waves

Explanation:

Answer:

It's Waves and storms but since its not multi choice and there's no choice for storm I would say that its waves.

Explanation:

Can u give me and exmaple of a bacteria and a example of a virus (separatly) and one characteristic that they have in common? Thanks

Answers

Answer:

example of virus: coronavirus or megavirus

example of bacteria: Micrococcus

they are both microscopic microbes. Both of them can cause diseases in plants and animals. Both these types of microbes contain enzymes required for the DNA replication and protein synthesis.

Explanation:

hope this helps please mark me as brainliest

thank you!

Five closely related species of frogs live in ranges that overlap. Some breed in woodland ponds, some in lowland swamps, and some in streams. How do these five species of frogs remain separate and do not attempt to mate?

Answers

Answer:

The diversity within the same species is what makes it not possible to reproduce, since it can have different methods of appearance and even different zones or mechanisms of reproduction since this was adapted to each particular climax.

Explanation:

Frogs that have different qualities in the same species are because they are subject to different environmental characteristics, therefore it is a way of natural adaptation.

By having different adaptation methods, this conditions that there is no cross reproduction between them.

Which of the following could be a nucleotide of dna?

Answers

Answer:

deoxyribose + phosphate group+ thymine

Answer:

deoxyribose + phosphate group + thymine

Explanation:

This is the correct answer on edge 2021 all of the other options are excluded

Can the number of protons in an element ever change?

Answers

Answer:

An elements atomic number will never change

Explanation:

That is because the atomic number is its "identity.". The atomic number is the number of protons that is contained in the nucleus, if you add a proton you change the element. Therefore, an elements atomic number will never change. Atomic mass, however, can change and we call these isotopes.

Answer:

An elements atomic number will never change, that is because the atomic number is its "identity." The atomic number is the number of protons that is contained in the nucleus, if you add a proton you change the element. Therefore, an elements atomic number will never change.

Explanation:

What does HIV/Aids have in common with the coronavirus?

Answers

Answer:

Both HIV, Aids and coronavirus comes from Viruses.

Answer:

both of them are pandemic diseases

Explanation:

both of them are pandemic diseases coz they have affected the whole world

pOH measures the concentration of
?

Answers

Answer:

pOH measures the concentration of Hydroxide ions.

Explanation:

The pOH content of bases is higher because they contain more Hydroxide ions compared to acids which contain more Hydronium or Hydrogen ions.

pH measures Hydronium or Hydrogen content, whereas pOH measures Hydroxide content.

Hydrogen and hydroxide ions
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