In what way does crossing over influence the genetic variation of offspring?

A. Genes from both parents are interchanged, which increases the number of possible combinations that the offspring can receive.

B. Chromosomes from both parents are interchanged, which increases the number of possible combinations that the offspring can receive.

C. Genes from both parents are kept separate, which reduces the number of possible combinations that the offspring can receive.

D. Chromosomes from both parents are kept separate, which reduces the number of possible combinations that the offspring can receive.

Answers

Answer 1

Answer:

A and B are both correct.

Explanation:

Chromosomes from both parents are interchanged, which increases the number of possible combinations that the offspring can receive.


Related Questions

2. Examine the arm bones of the two skeletons. Was Grandmother right- or left-handed? How
about Grandfather?

Answers

Answer:

Grandmother was Left-handed

Explanation:

I can tell this because she had thicker upper and lower arm bones on her left arm, compared to her right arm, telling me her left arm was dominant.

A change in the characteristics of
populations of living things over
time is called evolution.
Agree or disagree

Answers

Answer:

Agree

Explanation:

Answer:

Yes, it is true

Explanation:

Evolution is the processes in which organisms change or evolve, either anatomically or physiologically.

 

please please helppppp!!!!!!

Answers

C is the answer to the question
The answer to the question is C because when water turns into ice, the atoms come together to form a solid liquid.

HELP HELP HELP Why do minerals look the way they do

Answers

Answer:

Explanation:

Being able to identify minerals is important, because mineral identification is necessary to identify rocks and can be used to understand both the landscape and the geologic history of the area.

Using a Periodic Table, identify two elements
that would have the same number of energy
levels as Aluminum (Al).

Answers

Answer:

Na, Si, Mg.

Explanation:

SodiumSilicon Magnesium

Which of the following can be reasons that a tissue becomes diseased
It is made from cells with a strong nucleus.
It is made from cells that multiply uncontrollably.
It is made from cells with the wrong shape.
It is made from cells with mutated DNA.
It is made from cells that contain mitochondria.
Its endoplasmic reticulum produces proteins.
DONE

Answers

Answer:

It is made from cells that multiply uncontrollably.

It is made from cells with the wrong shape.

It is made from cells with mutated DNA.

Explanation:

because i'm smart. lol.

Answer:

It is made from cells that multiply uncontrollably.

It is made from cells with the wrong shape.

It is made from cells with mutated DNA.

above is right.

Explanation:

The cycle of the moon’s phases is predictable. About how long does it take to cycle from a first quarter moon to a full moon?

Answers

Answer:

About 14.75 days

It’s takes about 29.5 days

Not sure what the answer is.

Answers

the answer is A! long term

Answer:

A. Long term is the answer of your question

Photosynthesis produces chemical energy and Cellular Respiration uses chemical energy. What type of chemical energy do they both use?


A. protein

B. sunlight

C. food

D. glucose

Answers

Answer:

Photosynthesis uses energy from the sun in terms of sunlight and cellular respiration uses ATP energy.

Photosynthesis uses energy from the sun and cellular respiration uses glucose to get  ATP energy. Thus option B and D are correct.

what are the factors affecting photosynthesis ?

The process in which autotrophic plants use light energy from sun and convert it into chemical energy, and prepare their food in the form of glucose called as photosynthesis.

This chemical energy is created from water and carbon dioxide and stored as a sugar molecule, it occur in chloroplasts which has three pigments such as chlorophyll a, chlorophyll b, carotene and xanthophyll.

various factors influence photosynthesis like increase in light intensity causes higher rate of photosynthesis, Higher concentration of carbon dioxide increases the rate of photosynthesis, Temperature range between 25° to 35° C optimum for photosynthesis,

Thus option B and D are correct.

Learn more about photosynthesis, here:

brainly.com/question/1388366

#SPJ2

FAST PLEASE!!!!!!!! IM BEING TIMED HELP!!!!!! BRAINLYEST

Caused by differences in the density of ocean water; flows slowly.


Gulf Stream


deep current


surface current

Answers

Answer:

it is either B or C but probably C

What structure is referred to as the voice box

Answers

Answer:

Vocal folds

Explanation:

During glycolysis, glucose is broken down into two molecules of pyruvate.
A diagram shows the conversion of a glucose molecule to 2 pyruvic acid molecules. In this process, 2 A T P form 2 A D P, 2 N A D produce 2 N A D H, and 4 A D P produce 4 A T P.
What is the main transformation that occurs during glycolysis?

Answers

Answer:

Glycolysis produces ATP, pyruvate, and NADH by oxidizing glucose.

Answer:

Glycolysis produces ATP, pyruvate, and NADH by oxidizing glucose.

Explanation:

what is the universal system of units among scientists

Answers

Answer:

International System of Units (SI)

Explanation:

The measurements that scientists use are based on the International System of Units (SI), which is a form of the metric system. The term SI is shortened from the French term Le Système international d'unités. It is the world's most widely used system of units, both in science and business.  Hope this helped!

Answer: SI

Explanation:

A P E X

Why are cells stained ?

Answers

To observe the cell organelles inside them
By staining it will appear clear structure

Explanation:

The most basic rasen that cells are stained is enhance visualization of the cell or certain cellular components under a microscope

If you cut an apple into slices and leave them in the open air, they will slowly
turn brown. Is this a physical or chemical change? Explain *
O Physical change, because it is still an apple, but it is cut into smaller pieces.
Chemical change, exposure to air has caused the apple to turn color, indicating
something new.

Answers

Answer:

Chemical change, exposure to air has caused the apple to turn color, indicating  something new.

Explanation:

Chemical change, exposure to air has caused the apple to turn color, indicating  something new, because it is not asking if cutting the apples is a physical or chemical change, it is asking if the apples turning brown is a physical or chemical change.

helppp me pleaseee :)

Answers

Answer:

D!!

Explanation:

PLEASE HELPPPP!!!!
What characterizes a hypotonic solution?
a. More solute & solvent than another solution
b. Less solute & solvent than another solution
c. More solute than another solution, but less solvent
d. Less solute than another solution, but more solvent

Answers



Hi :)

A hypotonic solution has a lower concentration of solutes than another solution

In biology, a solution outside of a cell is called hypotonic if it has a lower concentration of solutes relative to the cytosol

Due to osmotic pressure, water diffuses into the cell, and the cell often appears turgid, or bloated

Hope this helps :)

1. How many food chains make up the food web?



2. Which organism is an herbivore?



3. Which organism is an autotroph?



4. Which organism is a third-order heterotroph? To what trophic level does that organism belong?



5. Which organism is an omnivore?



6. Which organisms belong to more than one food chain?



7. Which organism belongs to more than one trophic level?



8. What are decomposers? From which trophic levels are the organisms that decomposers feed on?



9. What does a pyramid of energy show about the amount of energy available at different trophic levels of a food chain?



10. Why do different trophic levels have different amounts of energy?

Answers

Answer:

A food web can be formed by more than one food chain, since the webs includes all possible interactions that can occur between individuals of different trophic levels.

Explanation:

Based on the scheme shown in the image

1. How many food chains make up the food web?

This food network is made up of three food chains

Plant → Bird → SnakePlant → Insect  → Bird → SnakePlant → insect → Frog → Snake

Food webs often include several food chains, since they are due to the interaction between organisms at different trophic levels, which actually happens within an ecosystem.

2. Which organism is an herbivore?

In this case, both the insect and the bird are herbivorous organisms, since they feed of the producer, which is the plant.

3. Which organism is an autotroph?

The only autotrophic organism is the plant, since it is capable of manufacturing its nutrients from sunlight and inorganic matter.

4. Which organism is a third-order heterotroph? To what trophic level does that organism belong?

The third order heterotroph is the snake, since it feeds on other animals.  The snake is a carnivore and can be a secondary or more commonly tertiary consumer, so it can be placed in the 3rd or 4th trophic level.

5. Which organism is an omnivore?

According to the scheme proposed, the bird is omnivorous, since it feeds on both plants and insects.

6. Which organisms belong to more than one food chain?

In this case, the plant, the insect, the bird and the snake are part of more than one food chain.

Plant → Bird → SnakePlant → Insect  → Bird → SnakePlant → insect → Frog → Snake 7. Which organism belongs to more than one trophic level?

The bird can be located in both the second and third trophic level, being a primary consumer —when it feeds on plants— or secondary, when it feeds on insects.

8. What are decomposers? From which trophic levels are the organisms that decomposers feed on?

Decomposers are generally bacteria and fungi, organisms capable of degrading organic matter, thus enriching the soil. Decomposers can feed on any trophic level.

9. What does a pyramid of energy show about the amount of energy available at different trophic levels of a food chain?

As the ascent of the pyramid occurs —or at the upper trophic level— the amount of energy available decreases. This is because from one trophic level to another only 10% of the energy can be used. If a plant has 5000 Kcal available, the herbivore that consumes it can only use 500 Kcal.

10. Why do different trophic levels have different amounts of energy?

The main reason for the difference in energy in each trophic level is that energy is lost in each one of them, which the organisms use in their metabolism. A consequence of the metabolism is the loss of energy as heat, which is acquired by the environment.

How do ultrasound waves clean jewellery

Answers

Answer:

They use ultrasound waves and chemicals combined to create bubbles that "cling" to the foreign particles such as dirt, oil, and unknown substances.

Explanation:

Ultrasonic cleaners are useful for jewelry cleaning and removing tarnish. They use ultrasound waves and chemicals combined to create bubbles that "cling" to the foreign particles such as dirt, oil, and unknown substances. The high frequency waves are sent out and pull the contaminants off the object.

Answer:

Ultrasound waves and chemicals are combined to create bubbles that "cling" to foreign particles such as dirt, oil or other unknown substances. The waves are sent out to extract these particles.

Explanation:

9. The prefix mono- means "one" and the prefix poly-
means "many." Some lipids are monounsaturated, and
others are polyunsaturated. Explain the difference
between the fatty acids in these different types of lipids.

Answers

Answer:

Monounsaturated Fats: This type of unsaturated fat contains only one double bond in its structure.

EXAMPLE: Stearic acid having chemical formula= C18H36O2

Polyunsaturated Fats: This type of unsaturated fat contains two or more double bonds in their structure.

EXAMPLE: Lenolic acid having chemical formula= C18H32O2

Explanation:

The diagram shows the alignment of the sun, the moon, and Earth.

13. Which best explains why low tides are happening at locations 2 and 4?



Group of answer choices

A. Earth’s gravitational pull on the sun

B. the moon’s gravitational pull on Earth

C. Earth’s gravitational pull on the moon

D. the moon’s gravitational pull on the sun

Answers

Answer:

I think the answer is c sorry if I'm wrong :(

PLEASE HELP ASAP before 6

Answers

It’s blurry but the answer is 40
The question is very blurry but I’m pretty sure the answer would be 40

Aquatic organisms are able to survive when the temperature decreases. These organisms survive even when the surfaces of lakes and ponds are covered with ice. Which property of water best explains how aquatic organisms can survive during freezing temperatures?

Answers

Answer:

Anomalous expansion

Explanation:

Anomalous expansion of water is the abnormal way water expands when exposed to low temperature.

At 4 degree Celsius , the density at the top layer is usually at the Maximum which makes the water sinks down and then the water in the lower layer rises up.

When the temperature drops below 4 degree Celsius, the water molecules at the top then freezes leaving the denser molecules at the bottom which doesn’t freeze as a result of their high density.

This way, organisms can survive in the water due to the lower layer not freezing.

Carbon atoms have four electrons in their outer shell. This means that a single carbon atom can form up to _______ bonds with other atoms.

Answers

Answer:

four

Explanation:

Carbon atoms have four electrons in their outer shell. So, it exhibits tetravalency & thus, a single carbon atom can form a maximum of four (4) bonds with other atoms

i will give brainly answer.
i’m not smart and can’t think for myself. please and thank you:)

compare and contrast coal and nuclear power. would you support either of both of these forms of energy technology. why or why not?

Answers

Answer:

I will give you a basic idea of what you should write in my opinion you should support neither of these forms of energy mainly due to the reason that both forms of energy pollute the world. instead we should focus on using renewable energy such as solar wind and hydro. furthermore coal and nuclear power are non-renewable resources which means that there is only a limited amount on the earth which brings up the benefit of having renewable energy as there is endless supply of it.

How do organisms survive in harsh or changing environments?

Answers

Answer:

organisms evolve in order to better equip them to survive in their environment

Explanation:

for example, polar bears have white fur so they can blend into their environment.

Search Results
Featured snippet from the web
An adaptation is a genetic change, or mutation, that makes the organism better able to survive in its new environment. These mutations are a normal part of the variation that exists in any population. Mutations can either be harmful, neutral, or beneficial.

Which animal can leave its eggs to hatch and does not need to take care of its infants?

Answers

Answer:

snakes

Explanation:some mother snakes abandon their eggs and the infants already know how to hunt and survive

Answer: Sea Turtles and frogs

Explanation: because they lay them in a place under ground or in a place where not of animals can take them

Describe the structure of an amoeba .....in short form​

Answers

Answer:

Structure of amoeba primarily encompasses 3 parts – the cytoplasm, plasma membrane and the nucleus. The cytoplasm can be differentiated into 2 layers – the outer ectoplasm and the inner endoplasm. The plasma membrane is a very thin, double-layered membrane composed of protein and lipid molecules.

Explanation:

:)

Answer:

The structure of amoeba is primarily composed of 3 parts – the cytoplasm, plasma membrane, and the nucleus.

Explanation:

Hope this helps!

Unlike proteins, which are made up of amino acids, nucleic acids are made up of —
А.
alternating nucleotides.
В.
monomers of sugar.
С.
fatty acid tails
Dmonomers of phosphates.

Answers

B, monomers of sugar

What do tissues working together form?

Answers

They form an organ

Have a nice day
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