Humans decide which varations are favorable or desired.

A. Artificial Aelection
B. natural selection
C. both

Answers

Answer 1

Answer:

Artificial selection

Explanation:

Artificial selection is the identification by humans of desirable traits in plants and animals, and the steps taken to enhance and perpetuate those traits in future generations.


Related Questions

What is comparative anatomy and how do scientists use it to study evolution?

Answers

Comparative anatomy helps determine organisms evolutionary backgrounds. Scientists use comparative anatomy to try and find a common ancestor for certain organisms. Have a good day!

Answer:

Comparative anatomy has long served as evidence for evolution, now joined in that role by comparative genomics; it indicates that organisms share a common ancestor.

is an important tool that helps determine evolutionary relationships between organisms and whether or not they share common ancestors. However, it is also important evidence for evolution.

Explanation:

their you go have a nice day

the specific physical location in which a given species lives is called its
a- community
b- abiotic factor
c- climate
d- habitat

Answers

Answer:

d

Explanation:

ANSWER:D
Explanation: because habit is a place were animals live

Why are enzymes important for chemical
reactions?

Answers

Answer:

Enzymes greatly increase the reaction rate, or catalyze them.

Explanation:

Without them, many of us would not be alive, because the reactions wouldn't be fast enough!

A father is heterozygous (AO) for his type A blood and a mother is heterozygous for her type B(BO) blood. What percentage of their offspring would you expect to have a child with O type blood?

Answers

Answer:

2 : 2 BO : OO

Explanation:

Children either have blood group B or O thus the probability of a child being either blood group B or O is 50%.

Name the plasma proteins?​

Answers

Plasma protein status. Albumin, globulins and fibrinogen are the major plasma proteins.

Blood proteins, also termed plasma proteins, are proteins present in blood plasma. ... Globulins make up 38% of blood proteins and transport ions, hormones, and lipids assisting in immune function. Fibrinogen comprises 7% of blood proteins; conversion of fibrinogen to insoluble fibrin is essential for blood clotting. Plasma proteins, such as albumin and globulin, that help maintain the colloidal osmotic pressure at about 25 mmHg. Electrolytes like sodium, potassium, bicarbonate, chloride, and calcium help maintain blood pH. Immunoglobulins help fight infection and various other small amounts of enzymes, hormones, and vitamins.

Hunting reserves also support wildlife conservation.give reason

Answers

Answer:

. because wild life is a renewable natural resource

On automobiles, what is designed to reduce noise pollution?

A Mufflers
B carburetors
C oil
D pistons

Answers

B carburetors .......
letter B i’m pretty sure, if you would like i can research it more

T-lymphocytes are created in the bone marrow and then developed in the

spleen.

adenoids.

thymus.

tonsils.

Answers

Answer: I would say it is in thymus.

Answer:

It is thymus, I just did the question and got it right.

What conditions are necessary for rocks to melt?

Answers

Answer:

In explanation.

Explanation:

The rock is pulled down by movements in the earth's crust and gets hotter and hotter as it goes deeper. It takes temperatures between 600 and 1,300 degrees Celsius (1,100 and 2,400 degrees Fahrenheit) to melt a rock, turning it into a substance called magma (molten rock).

The rock can be melted when high pressure and high temperature are applied to it, and due to the compression relaxation, the rock melts. The different types of rocks need different temperatures.

What is the effect of temperature on different substances?

Temperature plays an important roles in different substances, such as high and low temperatures, each with its own set of tasks. The high temperature can melt the solid substance into a liquid, and further heating converts the liquid into gas. Because of the high pressure and temperature in the earth's core, the rock is in a molten state, but when it comes out of the earth's core, after solidifying, it converts into solid rock. The low temperature converts the liquid into a solid, and food preservation is carried out by this process.  

Hence, the rock can be melted when high pressure and high temperature are applied to it, and due to the compression relaxation, the rock melts.

Learn more about the temperature here.

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There are 450 calories in 100 g of trail mix. If you burn 30 calories in 10 minutes of walking, how much trail mix should you eat to replenish the energy you spend walking for 2 hours?

Answers

Answer:

to replenish the energy spent walking for 2 hours, 80g of trail mix should be eaten

Explanation:

Firstly, let us calculate the number of calories burnt in 2 hours

in 10 minutes; 30 calories are burnt

∴ in 1 minute 30/10  calories are burnt = 3 calories are burnt

2 hours = 120 minute

∴ in 120 minutes 3 × 120 = 360 calories are burnt.

Next, let us calculate the amount of trail mix that contains 360 calories

100g of trail mix = 450 calories

450 calories = 100 g

1 calory = 100/450

∴ 360 calories = 360 × (100/450)

=  360 × 0.222 = 80g

∴ to replenish the energy spent walking for 2 hours, 80g of trail mix should be eaten

A
B
C
D
Need help PLEASEE

Answers

[tex]\huge{\textbf{\textsf{{\color{pink}{An}}{\red{sw}}{\orange{er}} {\color{yellow}{:}}}}}[/tex]

Ur answer is D.

Thanks,

The cells of both unicellular and multicellular organisms carry out life processes. With respect to life processes, what advantage do multicellular organisms have over unicellular organisms? 1) Their cells reproduce more quickly. 2) Their life processes occur over a shorter time period. 3) Their cells can specialize in certain functions. 4) Their cell division is more efficient.

Answers

Answer:

Their cells can specialize in certain functions

Explanation:

This because multicellular organisms are organisms that are made up of several cells which aid it's complexity and lifespan. The cells in muiticellular organisms carries out specialise function or task which give them long lifespan. This long life span is achieved because of various cells that maintain their processes, the cells forms tissues, tissues to organs, organs to system and they all perform different specialized functions.

What type of microscopy would you use to study the detailed internal structure of a mitochondria? A.Light microscopy B.Scanning Electron Microscopy C.Transmission Electron Microscopy D.Electron microscopy

Answers

Answer:

C: Transmission Electron Microscopy

Explanation:

Transmission Electron Microscopy shows the complex internal membrane structure of mitochondria

Which statements describe proteins? Select three options

Answers

Answer:

Proteins are created from the code in DNA.

Amino acids are the building blocks of proteins.

Proteins affect the structures and functions of living things.

Explanation:

Hope this helped you:D

Proteins are created from the codes in DNA

Which statement best explains why a bird may build a nest in a hidden location?

A.Birds build nests in hidden locations because it’s an innate behavior.

B.Birds build nests in hidden locations to avoid predators and decrease the probability of successful reproduction.

C.Birds build nest in hidden locations because it’s a learned behavior.

D.Birds build nests in hidden locations to avoid predators and increase the probability of successful reproduction.

Answers

Answer:

The answer is D

Explanation:

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Why would scientists conduct research on a newly discovered alternative fuel?

A. To maintain the public dependence on fossil fuels
B. To maintain the success of the petroleum industry
C. To confirm that the alternative fuel is cleaner than fuels currently used
D. To confirm that the alternative fuel increases atmospheric carbon dioxde.

Answers

Answer:

C. To confirm that the alternative fuel is cleaner than fuels currently used

Explanation:

The current fuels from mining, cutting down trees and even transportation is bad for the atmosphere. These fuels cause climate change which could potentially bring a lot of dangers. The reason scientists would conduct research on a newly alternative fuel is so that the fuel would be a lot more cleaner which could prevent the dangers that are to come.

Identify the reactants in the chemical equation above.
A.HCl and H2O
B.NaCl and H2O
C.NaOH and HCl
D.HCl and NaOH
PLEASE DO NOT SEND ME ANY LINKS TO ANSWERS.

Answers

a.) HCl+H2O=H3O+Cl
b.) NaCl+H2O=NaOH+HCl
c.)NaOH+HCl=NaCl+H2O
d.)HCl+NaOH=NaCl+H2O

Reactants: to the left side of equation
Product: to the right side of equation
H2O is water
HCl is hydrochloric acid
NaCl is sodium chloride aka table salt
NaOH is sodium hydroxide

A. Producer
B. Primary consumer
C. Secondary consumer
D. Tertiary consumer

Answers

Answer:B. Primary consumer

Explanation:The reason why Its b because that primary comsumers are mostly herbivores or the primary comsumer is the first consumer to eat the producer.Hope it helps!

Question 1 (2 points)
(04.02 LC)
Which of the following describes an element? (2 points)
a
Matter made up of only one type of atom
Ob
A substance made of two or more types of atoms
Ос
Two or more types of atoms chemically bonded together
Od
Two or more types of atoms that are not chemically bonded

Answers

Answer:

Two or more types of atoms chemically bonded together

Explanation:

Hope this helps

Sophie visited Carlsbad Caverns with her family during her summer vacation, and she was amazed at the cave’s formations. She learned that the cave was formed from minerals.

Rearrange the phrases describing one of the ways minerals form into the correct order. Place the earliest stage of mineral formation at the top. Place the final stage at the bottom. (Write 1 2 3 or 4 in order)
1. a solution forms from a liquid and dissolved substances
2. a warm solution flows through a crack in the rocks there
3. elements and compounds leave as the solution cools
4. elements and compounds crystallize
BASICALLY SAY WHICH STEPS GO FIRST IN MINERAL FORMATIONS! PLESSS

Answers

Answer:

The ways through which the minerals form include the following order:

2. a warm solution flows through a crack in the rocks there

1. a solution forms from a liquid and dissolved substances

3. elements and compounds leave as the solution cools

4. elements and compounds crystallize

Explanation:

From the explanations above, it could be seen that a warm solution (most probably water) flows through the cracks in the rocks leading to dissolution of substances to form liquid. When the liquid cools, the elements leaves and crystallize as compounds.

Help please need help this is due soon​

Answers

Answer:

2)parastice

4)predation

hope this helps and this is the far I can get

What are the three types of isolating mechanism that favor reproductive isolation and speciation?

Answers

Ecological, temporal, geographical

The purpose of the right ventricle is to:

Answers

The purpose of the right ventricle is to passes blood to the pulmonary artery, which then sends it to the lungs to pick up oxygen

What do consumers gain from
producers because of
photosynthesis?

Answers

Answer:

In summary, producers are organisms that make their own food. Producers create food for themselves and also provide energy for the rest of the ecosystem. Consumers are organisms that need to eat to obtain energy. Primary consumers, such as deer and rabbits, eat only producers.

Explanation:

HELP!!!! 50PTS!!!!!

Which of the following is not one of the steps through which scientists hypothesize simple cells were produced? (3 points)
The biotic synthesis of small inorganic molecules
The joining of small molecules to form macromolecules
The origin of self-replicating molecules
The packaging of macromolecules into protocells

Answers

Answer:

The biotic synthesis of small inorganic molecules

Explanation:

The biotic synthesis of small inorganic molecules is not one of the steps through which scientists hypothesize simple cells were produced.

What do you mean by a Cell?

A cell may be defined as the smallest structural and functional unit of life in the living entities.

Biotic synthesis of small inorganic molecules lacks the presence of essential elements like hydrogen and carbon. In the absence of such important biomolecules, simple living cells are impossible to synthesized.

Therefore, the correct option for this question is A.

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The following passage explains the relationship between tectonic plates and earthquakes. Which sentence states incorrect information?


Tectonic plates can push together, pull apart, or slide past each other at their boundaries. The edges of tectonic plates are not smooth, so they create friction as they move. When friction is too great for the plates to move, they can become stuck and pressure can build up. An earthquake occurs when pressure that has built up between plates suddenly is released. The buildup of pressure that leads to earthquakes only occurs at plate boundaries.​

Answers

Answer:

earthquakes occur when the edges suddenly become unstuck and slip along a fault

Explanation:

What is the solubility of potassium chloride at 55C

Answers

Answer: So our final value for the solubility of potassium chloride at 15 degrees Celsius is 36.3 grams per 100 mL of water. Hope this helps. Can u give me brainliest

Explanation:

HELP PLS :)



It's hard to believe that forces and energies in space have an impact of events here on Earth. Scientists believe that the Sun is a huge influence on our planet. They have evidence to support their theories.


Can you pick out the statements that are true; statements that support the influence of the Sun on the Earth?


Spring tides are the largest tides due to the combined influence of the Sun and the Moon.


The sunspot cycle results in ice ages on Earth.


Solar flares disturb some radio communications here on Earth.


Geomagnetic storms on the Sun can damage to Earth-orbiting satellites.


The Sun's gravity is responsible for the planets' orbital path.

Answers

Answer:

the third one as I studied and knew.

To what other kind of "The Leap" might the title refer?

Answers

The title could refer to her days as a circus performer when she was performing the trapeze and the storm hit and she had to leap in order to save her life. Also when the narrator was stuck in her room because of the fire and the mother leaped from the thin branch to the roof in hopes of saving her daughter.

Answer:

1)Her first physical leap is that of one of the Flying Avalons as she saves her life in the storm that toppled the big top.

2)Her second physical leap is that of climbing a tree and leaping from a branch that hangs over the roof of her house so that she can rescue her daughter from the burning bedroom

3)Her figurative leap is that of learning to read in the hospital where she meets her second husband, the physician who set her arm and read to her while it mended.

Anna Avalon has told her daughter that as one flies through the air there is definitely time to think. "I know that she's right." The narrator's mother has

Hope This Helps!

Which is all of the organisms found on earth and all of the areas in which they live
A. Ecosystem
B. Biome
C. Species
D. Biosphere

Answers

Answer

ecosystem

Explanation:

because a biome is s a collection of plants and animals that have common characteristics for the environment they exist in. They can be found over a range of continents. Biomes are distinct biological communities that have formed in response to a shared physical climate.

Answer:

Biosphere

Explanation:

I took the test and got it right. Hope this helps!

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