13. What is macroevolution?
genetic changes among and within populations
minor changes in populations over a long time
changes in a population's allele frequencies
major changes in populations over a long time

Answers

Answer 1

Answer:   Evolution is a process that results in changes in the genetic material of a population over time. ... Microevolution reflects changes in DNA sequences and allele frequencies within a species over time. These changes may be due to mutations, which can introduce new alleles into a population.


Related Questions

Hello Brainly, I am new to this app! I am loving it so far! Could someone please help me answer this question!

And could someone please explain what is the “Brainiest?”

I will award Brainiest if someone could explain answers to both questions!
Thank you!

- Animals can display features similar to those of poisonous animals, to deter predators. What is this known as?

A) Marquetry

B) Mimicry

C) Mockery

D) Minimalism

Answers

Answer:

B mimicry

Explanation:

just remember it as Mi Mi-cry

8. The heart is considered to be a part of which of the two systems listed below? A circulatory and integumentary C circulatory and muscular B respiratory and muscular D skeletal and circulatory

Answers

I found this i hope it helps

About the Heart and Circulatory System

The circulatory system is composed of the heart and blood vessels, including arteries, veins, and capillaries. Our bodies actually have two circulatory systems: The pulmonary circulation is a short loop from the heart to the lungs and back again, and the systemic circulation (the system we usually think of as our circulatory system) sends blood from the heart to all the other parts of our bodies and back again.

Which of the following contains chemical energy?

A. Light
B. Height
C. Food
D. Motion

Answers

Answer:

c.food

Explanation:

hope it helped you

Food contains chemical energy. Thus, the correct option is C.

What is Chemical energy?

Chemical energy may be defined as the energy of chemical substances that are evolved when they undergo a chemical reaction and transform into other substances.

Light and motion contain kinetic energy, while Height contains gravitational energy.

Food contains chemical energy which is released at the time of digestion that involves the breakdown of bonds between the particles.

Therefore, the correct option for this question is C.

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In a water molecule the electrons are not equally shared , creating a ____ molecule .


Please help me

Answers

Answer:

Polar

Explanation:

In a water molecule, the oxygen atom is bigger and has a greater pull on the electrons than the hydrogen atoms do. This makes the molecule polar.

Based on the data, identify the temperature range at which the soybean leaves are producing the lowest amount of carbohydrate.

Answers

The data related to the question is attached to the answer as a table.

Answer:

The correct answer is - 45 to 50-degree celsius.

Explanation:

According to the data presented in the table, it is shown that the optimum temperature for carbohydrate production and action of the RubisCo enzyme is 40-degree Celsius. Increasing above the optimum temperature range will lead to reduced production of carbohydrates and above 45 degrees carbohydrate production will be the least as the action of the enzyme will be very low. So, 45 to 50 degree celcius is the temperature range at which the production of Carbohydrates is very much reduced in soyabean leaves.

BRAINLYIST PLEASE HURRYY

Answers

Answer:

c

Explanation:

Answer:

i really dont know this but i say ethier a or b

Explanation:

Helllpppp!!!!

How would the disappearance of shrimp, copepods, and amphipods affect the other organisms in the ocean food web

Answers

The disappearance of shrimp who cause whale numbers to decrease because they are a main food source for whales. And if copecods were to disappear it would cause a problem with microscopic algal cells and phytoplankton who’s populations would increase. And amphipods play an important role in marine and freshwater ecosystems. So if they were to disappear they would be more dead creatures around because they are scavengers and eat dead or decaying algae.

All non-harmful environmental agents that a pregnant woman ingests aid in the development of the fetus.
Please select the best answer from the choices provided
T
F

Answers

Answer: False

Explanation:

Just because an environmental agent is not harmful does not mean that it is beneficial therefore not all non-harmful environmental agents that a pregnant woman ingests aid in the development of the fetus.

This is where the Placenta comes in. It filters out the agents and nutrients that are not needed and passes only the relevant ones to the fetus thereby ensuring that not all non-harmful agents pass through.

Answer:

False

Explanation:

Edge 2022

A large photograph displayed on a store’s website would NOT qualify for fair use under which guideline?

Answers

Answer:

copyright

Explanation:

What characteristics apply to gymnosperms? (Choose all that apply)
use seeds to reproduce
use spores to reproduce
have vascular tissue
have cones as reproductive structures

Answers

Answer:

Have cones as reproductive structures.

Have vascular tissue.

Explanation:

The gymnosperms have vascular tissue and have cones as reproductive structures.

What are gymnosperms?

The gymnosperms are woody like plants having a  cone shaped structure,  bear no flowers, no fruits but bear seeds; The seeds are with out coat and they are not covered by the fruit wall.

Gymnosperms produce seeds which are not enclosed in an ovary, while in Angiosperms the reproductive organs are the flower, they may  involve in double fertilization resulting in a diploid zygote, and a triploid endosperm.

Gymnosperms  produce seeds and fruits from their flowers, the flowers in gymnosperms helped in the propagation of the plants, it attract pollinators and attracted seed to dispersers, gymnosperms became dominant among plants.

The modification of the gymnosperm includes Modified leaves, Sunken stomata, Pointed and thick cuticle leaves, Less transpiration rate.

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Body waves are seismic waves that travel through the middle of the Earth; surface waves are seismic waves that travel along the surface of the Earth. * True False​

Answers

Answer:

True

Explanation:

It is correct that body waves travels through the middle of the earth and surface waves travels along the surface.

Seismic waves are elastic waves that are produced when the earth is disturbed. There are two categories of the wave which are body and surface waves. Body waves are the P and S - waves that travels through the earth. Surface waves are the love and Rayleigh waves which moves on the surface.

Answer:

False on Edg 2022

Explanation:

Where does mRNA come from?

Answers

Answer:

mRNA is “messenger” RNA. mRNA is synthesized in the nucleus using the nucleotide sequence of DNA as a template. This process requires nucleotide triphosphates as substrates and is catalyzed by the enzyme RNA polymerase II. The process of making mRNA from DNA is called transcription, and it occurs in the nucleus

Explanation:

Give an example of how Eubacteria can be beneficial. Explain. Please help me. ​

Answers

Answer:

Some bacteria are good for you, including the bacteria in your digestive system, or gut. These bacteria help to break down food and keep you healthy. Other good bacteria can produce oxygen are used to create antibiotics. Bacteria are used in food production to make yogurt and fermented foods.

An example of how Eubacteria can be beneficial is that these bacteria fix nitrogen for soil that can be used by living beings.

What are eubacteria?

The bacteria in your gut and digestive tract are among the beneficial bacteria. These microorganisms aid in the digestion of food and promote good health. To make antibiotics, other beneficial microorganisms that can also produce oxygen are employed. Yogurt and other fermented foods are produced using bacteria in the food industry.

Oxygen, carbon, nitrogen, and phosphorus that living things like animals and plants cannot use can be converted by eubacteria into usable forms. In the soil, they fix the nitrogen that is present in the air.

Therefore,  Eubacteria can help the environment by fixing nitrogen into the soil so that living things can use it.

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Help me with these two questions please !!!!!!!!!!!!!!

Answers

Answer:

Question 13: C

Question 14: D

Have a great day, hope this helps :)

pls pls pls help
will mark brainliest
what happens with the relative positions of the Sun and the Moon in the sky?

Answers

Answer:

the moon and the sun line up above earth and sometimes creates eclipses.

Explanation:

I took the test. Please mark brainliest

Development and the specialization of cells happens in unicellular organisms

Question 9 options:
True
False

Answers

I think that question is true don’t but not sure

confusin help pls ??????????

Answers

Answer:

yes I ldk what u want with no pictures

What is wrong with the following nucleic
acid sequence?
AATCGUTUTUTAACCGGUTACUGT

Answers

the U shouldnt be there because it can either be ACTG or ACUG depending on if its RNA or mRNA

Drag the tiles to the correct boxes to complete the pairs.
Zara, Sam, Shyla, and Ryan are playing a game with marbles, Match the statements with the number lines that represent their solutions
Two more than Shyla's score is less than 9.
Shyla's score is x
Three times the number of marbles that
Zara has is more than 15. The number
of marbles Zara has is x,
Sam needs more than 6 points to quality
for the next level of the game. The
number of points Sam needs is x
Two times Ryan's score is less than 12
Ryan's score is x

Answers

Answer:

i dont really know but i think its a to the last slot b to the 2 slot and c to the first slot and d to third slot

Explanation:

my stupid brain

. when photosynthesis happen....?
A.
Night

B.
All of day

C.
If there is light

D.
Every time​

Answers

Answer:

C

Explanation:

If there is light, plants can preform photosynthesis from sunlight

Answer:

i think the answer should be C

Explanation:

Plants need light to photosynthesize, but it doesn't necessarily have to be sunlight. If the correct type of artificial light is used, photosynthesis can happen at night with lights that contain blue and red wavelengths.

Punnet squares help Fill in the Punnett square for breeding a female chocolate lab (bbEE) with a male black lab (BbEE). bE bE bE bE BE BE bE bE

Answers

Answer:

See the answer below

Explanation:

First, we need to identify the gametes that would be produced by each gene.

bbEE will produce bE, bE, bE, bE.

BbEE will produce BE, BE, bE, bE.

These gametes will then be aligned at the horizontal and vertical side of the Punnet's square to give the genotype of the offspring as shown in the attached image.

Answer:

bbEE will produce bE, bE, bE, bE.

BbEE will produce BE, BE, bE, bE.

Explanation:

How is biodiversity regulated in a system?

Answers

Answer & Explanation:

Biodiversity is regulated primarily by weather in addition to many other factors. Weather changes can cause droughts or flooding. Weather often pushes main species to migrate and therefore cause new biodiversity, indirectly the migration of one species into a new region could cause that new species to consume the already thriving species already in existence which then could reduce the value of species diversity in that region and throw off the pre-existing ecosystem.

Using Newton's laws explain why heavier objects require
more force than lighter objects to move or accelerate them?

Answers

Answer: Something with more mass moving at the same acceleration as a lighter object would require more force to change its speed or change its direction.

Explanation:

Aside from solar energy, what else could provide electrons?

Answers

Electrical energy is delivered by tiny charged particles called electrons, typically moving through a wire. Lightning is an example of electrical energy in nature.

Small charged particles called electrons, which normally flow via a wire, provide electrical energy. An illustration of electrical energy in nature is lightning.

What are the different sources of electron?

The majority of free electrons are created with minimal kinetic energy and just disperse through the atmosphere, participating in the random thermal motion of every atom.

With enough kinetic energy, some free electrons are created that can lead to further ionization and excitation.

The source of electrons is a filament, or cathode. Usually, it is a tungsten wire in the form of a hairpin.

The surrounding cathode cap is given an accelerating voltage (determined quantity of negative high voltage). The filament is then exposed to a tiny emission current to liberate electrons.

Therefore, aside from solar energy, electron are produce.

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A scientist takes a cell from one cow and an egg from a second cow. The scientist removes the DNA from the egg and replaces it with the DNA from the first cow. The scientist’s goal is to produce a baby cow with DNA that is identical to the first cow.

Which best describes this scenario?

genetic engineering
gene therapy
cloning
selective breeding

Answers

Answer:

Cloning I'm pretty sure

Explanation:

Answer:

Cloning

Explanation:

Which of the following best describes a population?

Answers

Answer:

Explanation:

A number of things/people that populate on place

Convergent plate boundaries can form which of the following?
Rift Valleys
Deep Ocean Trenches
Mountains
Volcanic Island Arcs
New Ocean Floor

Answers

Answer:

Deep Ocean Trenches, Volcanic Island Arcs and mountains

Explanation:

At a convergent plate boundary two plates collides with one another. Based on the type of plate, different features can form at such a margin.

In a continental - continental crust collision, both plates have the same density so, they build up on collision to form a mountain. In an oceanic - continental crust convergence; the oceanic plate is denser and it subducts. This leads to the formation of trenches. Also, here, the subducted plate will melt and a crack within the crust can allow for the melt to reach the surface and solidify to form volcanic Island arcs. Oceanic - oceanic crust convergence is also known.

Two identical twins live in the same city; one smokes and one doesn’t. The one who smokes develops lung cancer. What is the best reason for this?



A.
mostly genetics factors

B.
genetics and environmental factors

C.
mostly environmental factors

D.
it was not related to their genetics or environment

Answers

c. mostly environmental factors

Describe the graph pleaseee!

Answers

Answer: It is how far each planet is from the suns orbit.

Explanation:

Answer:

the answer is how far the planets are from one another

Explanation:

i took this exam

What is a boundary in which two plates move apart from each other called?

Answers

Answer:

A divergent boundary!

Explanation:

Hope this helps! <3

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