Genetic drift is a change in the gene pool due to chance. Genetic drift increases as the
population decreases. What accounts for this relationship?

Answers

Answer 1

Answer:

c

Explanation:


Related Questions

This body system sends impulses to all parts of the body; controls breathing and heart
rate for example.

A. Endocrine

B. Nervous

C. Excretory

D. Immune

Answers

Answer:

D

Explanation:

Hot summers and cold winters, topsoil rich in organic material, annual precipitation of 75 to 125 cm (30-50 in), and many hardwood trees are characteristics of the:

Answers

Complete question:

Hot summers and cold winters, topsoil rich in organic material, annual precipitation of 75 to 125 cm (30-50 in), and many hardwood trees are characteristics of the:

A.  temperate deciduous forest.

B.  temperate grassland.

C.  temperate rain forest.

D.   boreal forest.

E.  chaparral.

Answer:

A. temperate deciduous forest

Explanation:  

Temperate deciduous forest

Temperate deciduous forest is one of the biomes that extends to the south of the boreal forest, expanding in regions where temperatures are not that cold, and precipitations are abundant. The temperate forest is not continuous, it extends between 30º and 60º latitude in both hemispheres, and along with the continental extremes, influenced by the oceans. Vegetation suffers changes through the four seasons, which are clearly differentiated. Temperate forest characterizes for having deciduous trees among other phanerophyte species. Due to environmental conditions, these plants need to lose their leaves every year during the cold and dry autumns and winters, as it is the most limiting period over the year. They need to store different nutrients that will be used for plant growth during the following spring. Foliage reappears again during spring and summer.  

Winters are cold and summers are warm. Precipitations are abundant, between 750 and 1500 annual mm, and they are well distributed during the year. Usually, there is a small water deficit at the end of the summer, while during the spring there is water excedent in the ground. Soils are very fertile and deep, due to the leaves´ loss that provides nutrients to the soil and protects it from erosion.      

In humans, hemophilia is a sex-linked recessive trait. If a male who has hemophilia marries a female with
normal blood clotting, what percent of the males will have the disease
A- 0 males= 0% of the males
B- 1 male= 50% of the males
C- 2 males= 100% of the males
D- 3 males= 100% of the males

Answers

C- 2 males. 100% of males. I don't know but try using a punnet square to figure it out yourself :)

A body is negatively charged when________
1) It has lost neutrons
2) It has gained extra electrons
3) It has lost electrons
4) It has gained protons

Answers

Answer:

2.it has gained extra electron

Answer:

no 3 it has lost electrons

What happens when particles in a liquid speed up? A. they speed up and become a gas B. they speed up and become a solid C. they lose energy and become plasma D. they stay the same​

Answers

Answer:

A

Explanation:

A ____ farm can be used to generate electricity. a. sheep c. wind b. wheat d. fish

Answers

A wind farm can be used to generate electricity.

Answer:

The answer is pretty much C. wind

PLS HELP FAST NO LINKS!
What is formed because the Sun heats some areas of the earth more than others?

A.precipitation

B.clouds

C.air fronts

D.air pressure

Answers

D air pressure mostly

Is human reproduction controlled by the nervous system? True or false.

Answers

Answer:

True.

Explanation:

Which non-renewable source of energy does the world use the most?

Answers

Answer:

Renewable energy comes from sources that will never deplete, no matter how much is used. An example of this is wind energy, which had been growing in popularity in countries like India and Germany. Nonrenewable energy makes up 85% the energy used on earth—the most popular form of energy being oil.

An opportunistic predator switches prey, capturing whichever prey species is most abundant. As soon as the prey numbers dwindle and another species becomes more abundant, the predator will consume the more abundant species. In doing so, this predator maintains great biodiversity in the community. This type of predator is called a

Answers

Answer:

The correct answer is keystone predator.

Explanation:

In sustaining the composition of an ecological community, a keystone species plays an essential function. In the absence of keystone species, the ecosystem would fail to exist and would become drastically different. A predator is a classic illustration of a predator, which inhibits a specific herbivorous species from eradicating the dominant species of plants. In the non-existence of predators, the herbivorous prey would increase enormously and would clean the entire essential plant species, and thus, drastically change the significance of the ecosystem.

5. What do Chloroplast and Mitochondria have in common?
A. They contain DNA
B. Provide energy to the cell
C. Are in charge in cell transport
D. Make proteins

Answers

Answer:

B. Provide energy to the cell

Explanation:

Both the chloroplast and the mitochondrion are organelles found in the cells of plants, but only mitochondria are found in animal cells.

The function of chloroplasts and mitochondria is to generate energy for the cells in which they live.

The structure of both organelle types includes an inner and an outer membrane

An example of a parallel choice on a dichotomous key is

Answers

Answer:

brown hair or black hair.

It’s brown or black hair

What floats into rivers then into the ocean that causes the most ocean pollution?

Answers

Answer:

trash and junk

Drag two black mice into the Parent 1 and Parent 2 boxes. Click Breed to view the five offspring of these parents. What do the offspring look like

Answers

Answer:

The correct answer is - All offsprings are black-furred mice.

Explanation:

In this case, the parent mice are black and a cross between these mice produces offspring one allele from both parents. Here, black fur is dominant over white fur.

All the babies are with dark fur colors, no whites as black is a dominant color, so it produces black due to cross between two true breeds.

     B    B

B   BB   BB

B   BB   BB

Describe the processes that turn metamorphic rock into igneous rock and the energy that powers the processes.

Answers

So, we know that a metamorphic rock is either an igneous or a sedimentary rock that are exposed to intense heat and pressure.

But when the metamorphic rock is thrusted deep underground through subduction, it will again be subjected to intense heat. This can cause it to melt, turning it into a magma. When the magma cools down, it again becomes an igneous rock and the rock cycle continues.

1. Most organisms have only one cell.
True or false

Answers

Answer:

True

Explanation:

Hope this helps!! :)

It’s false because there are single cell organisms and organisms with multiple cells

Which endorcrine gland is indicated by the arrow?

Answers

sorry by mistake

pls delete my answer

Which of these is not a characteristic of living things?
All living things are made up of cells.
All living things are based on a universal genetic code.
All living things move.
O All living things grow and develop.

Answers

Answer:

Not all living things move

Explanation:

Trees dont move and they are living plants.

All living things move


Explanation: Not everything that moves is living. For example if you move a tissue it is not living

Why consist of a cell body that contains the 

Answers

Answer:

The cell body, also called the soma, is the spherical part of the neuron that contains the nucleus. The cell body connects to the dendrites, which bring information to the neuron, and the axon, which sends information to other neuron

Explanation:

Mark brainliest pls

Computer simulations are __________ ?
1) Dry lab
2) In-silico
3) In-vitro
4) Wet lab

Answers

Answer:

2) In-silico

Explanation:

Hope it helps!

Community ecologists study the factors that determine the abundance of different species. The Abundance of three algae species (in mg/mL) is quantified in two different lakes before and after an unusually hot summer. The coordinates of these four samples inR3are (i) Lake A: (97,84,43)and (100,80,50) before and after summer, respectively, and (ii) Lake B: (23,59,22) and (20,63,15)before and after summer, respectively.(a) How does the magnitude of the change in algal community compare between the two lakes

Answers

Answer:

Explanation:

Given that:

The abundance of three algal species in Lake A is now represented by the vectors:

[97, 84, 43] and [100, 80, 50]

Now if we look at Lake A, the change occurring in the vector of algae species can be determined as:

a = [100 -97, 80 - 84. 50 - 43]

a = [3, -4, 7]

Thus, the magnitude of that change is:

[tex]|a| = \sqrt{(3)^2 +(-4)^2+(7)^2}[/tex]

[tex]|a| = \sqrt{9+16+49}[/tex]

[tex]|a| = \sqrt{74}[/tex]

[tex]|a| =8.6 \ mg/mL[/tex]

The abundance of three algal species in Lake B is now represented by the vectors:

[25, 59, 22] and [20, 63, 15]

At Lake B, the change occurring in the vector of algae species can be determined as:

b = [20 -23, 63 - 59. 15 - 22]

b = [-3, -4, -7]

Thus, the magnitude of that change is:

[tex]|b| = \sqrt{(-3)^2 +(4)^2+(-7)^2}[/tex]

[tex]|b| = \sqrt{9+16+49}[/tex]

[tex]|b| = \sqrt{74}[/tex]

[tex]|b| =8.6 \ mg/mL[/tex]

Hence, for both Lake A and B, the magnitude of change is the same.

PLS HELP

During which phase of meiosis does crossing over occur?

A. Interphase

B. Prophase 1

C. Metaphase 1

D. Anaphase 1

E. Telophase 1​

Answers

Answer:

prophase 1

Explanation:

the complex that temporaily forms between homologous chromosomes is only present in prophase 1, making this the only opportunity the cell has to move dna segments between the homologous pair.

Both microscopy and motility agar are used to confirm microbial mobility. Research techniques involving microscopic determination of mobility and explain why both microscopy and motility agar are required to determine motility in some microbes.

Answers

Answer:

One allows microbe to move in the medium and the other allows to see it.

Explanation:

Both microscopy and motility agar are required to determine motility in some microbes because both substances helps to find out the mobility in the microbes. Motility agar is the medium that allows microbes to swim if they have flagella in their body while on the other hand, microscope is used to see the movement of microbes in motility agar. Microbes are small creature which can't be seen through naked eyes so we used microscope for it.

Which of the following is not a contribution of Gregor Mendel to the field of genetics?

A. Discovering Natural Selection

B.Identifying dominant and recessive traits

C. Making genetic predictions​

Answers

Answer:

its c

Explanation:

Kudzu, a vine native to Asia, was introduced into the USA in 1876. Farmers in the South were encouraged to plant kudzu to reduce soil erosion. Once established in its new habitat kudzu can grow as fast as a foot a day!



Which of the following is likely NOT true about the impact of kudzu in the South?

a
Kudzu has the potential to overtake and replace native plants
b
Increase the biodiversity of the ecosystem in the South
c
Alter the nitrogen balance of the soil
d
Have long term impacts on the local organism populations

Answers

Answer:

hi what did you get for this one?

Explanation:

The statement which is not true about the impact of kudzu in the South is that it has long-term impacts on the local organism populations. Thus, the correct option for this question is D.

What is Habitat?

Habitat may be defined as a type of natural environment for which a particular species is best adapted due to natural selection. It is generally an area or place where all the basic demands of an organism are fulfilled like food, space, mating partner, resources, etc.

According to the context of this question, the farmers in the south were encouraged to plant kudzu to reduce soil erosion. This means that it has the ability to increase the biodiversity of the ecosystem in the South.

Apart from this, it also has the potential to overtake and replace native plants. It also alters the nitrogen balance of the soil. But it does not express long-term impacts on the local organism populations.

Therefore, the statement which is not true about the impact of kudzu in the South is that it has long-term impacts on the local organism populations. Thus, the correct option for this question is D.

To learn more about Habitat, refer to the link:

https://brainly.com/question/728057

#SPJ6

Science- bbbbbbbbbbbbb

Answers

Answer:

table

Explanation:

Question 9 (1 point)
The producers that live in the abyssal zone are chemosynthetic because this zone has no what

Answers

Answer:

No sunlight penetrates the Abyssal zone.

Explanation:

I did this on my study guide a while back and got an A for it.

Jade looks at the flowerpot in her classroom and notices that it looks wilted. Which of the following actions could be taken to help the wilting flower?

A. put it in direct sunlight
B. prop it up with toothpicks
C. throw it away
D. pour water into the pot

Answers

A


the sun is in need for sunlight!

Identify the organelle that packages and secretes proteins and membrane parts

A. Nucleus

B. Mitochondria

C. Golgi Apparatus

D. Cell Membrane​

Answers

either b or d. good luck
The answer should be C. Golgi Apparatus

Goats and sheep belong to the same family but different genera. While they often live together in the same pastures, the hybrid offspring that are occasionally produced between the two species rarely survive. When such a hybrid does survive, it is usually sterile. Which of the following best explains the mechanism that maintains reproductive isolation between goats and sheep?

a. Gene flow is prevented because the two species belong to different trophic levels and therefore do not share a food source.
b. Habitat isolation creates a prezygotic barrier between the two species.
c. The males of one species and the females of the other species are fertile at different times.
d. The two species have a different number of chromosomes, resulting in a postzygotic barrier.

Answers

Answer:

d. The two species have a different number of chromosomes, resulting in a postzygotic barrier.

Explanation:

The two species i.e. sheep and goat have different number of chromosomes that resulting in a postzygotic barrier. Sheep has 56 number of chromosomes whereas goat has 60 number of chromosomes that causes postzygotic barrier in the offspring produced from the fusion of these two species. Postzygotic barrier leads to the creation of a hybrid that is sterile and unable to produce offspring because of difference in chromosome number.

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