Why is crossing-over important?

It completes Meiosis II.

It ensures that each gamete receives identical genes.

It creates new DNA.

It creates genetically unique gametes.

Answers

Answer 1

Answer:

I think 4th option is correct

.....................


Related Questions

the process of breaking food is to release energy is called _____​

Answers

Answer: cellular respiration

Explanation: I hope this helps

Which end of an earthworm contains an organ that can detect smells?

Answers

Answer:

The anterior (front) end of an earthworm contains an organ that can detect smell.

:)

Use FIGURE A to help you answer the following question. Although half of the moon is always illuminated, usually only a portion of the illuminated side is visible from Earth. The diagram above presents the relative positions of Earth, the sun, and the moon. The positions of the moon are labeled 1–8. Which of the moons in the figure are in a crescent phase? *

Answers

Converting from the US customary system to the metric system, 16 fluid ounces is approximately equal to a) 1 gallon. O b) 160 milliliters. c) 480 milliliters. O d) 960 milliliters.

Which cellular structure would control the flow of salts into and out of a cell?
cell membrane

cytoplasm

mitochondria


nucleus



NEED HELP EXPLANATION IF POSSIBLE

Answers

Mitochondrial answer c

how do the ranges for the marine bird and sea turtle species species compared

Answers

Answer: Varies

Explanation:

It's based on there being many different types.

5
Drag each label to the correct location.
Classify the natural resources as renewable or nonrenewable.
solar energy
minerals
animals
Renewable
Nonrenewable
coal

Answers

Answer:

Renewable:

- solar energy

- animals

Nonrenewable:

- coal

- minerals

Explanation:

Hope this helps :)

Answer:

Renewable:

- solar energy

- animals

Nonrenewable:

- coal

- minerals

Explanation:

Which of the following would have hydrophobic interactions with the hydrophobic amino acid phenylalanine?
the negatively charged amino acid glutamate
the positively charged amino acid arginine
the hydrophobic amion acid isoleucine
the polar amino acid serine

Which of the following would have the strongest interaction with the negatively charged amino acid aspartate?
the negatively charged amino acid glutamate
the positively charged amino acid arginine
the hydrophobic amino acid isoleucine
the polar amino acid serine

Which of the following would have the strongest interaction with the positively charged amino acid lysine?
the negatively charged amino acid glutamate
the positively charged amino acid arginine
the hydrophobic amino acid isoleucine
the polar amino acid serine

Answers

Answer:

polar

Explanation:did the test g

Question in the picture

Answers

Answer:

1.255hpq

Explanation:

hope it helps po...

الاحرف التالية COMPT اختصار ل اي مصطلح بعلم الادوية ؟؟​

Answers

Answer: ELMO

Explanation:

What does the cell nucleus contain?
cytoplasm
vacuoles
chromosomes
chloroplastsWhat does the cell nucleus contain?
cytoplasm
vacuoles
chromosomes
chloroplasts

Answers

A nucleus cell contains chromosomes among other things.

biology chapter 12 assessment

Answers

Answer:

what is the question so that I will solve it


Did cellular respiration occur in trial 3 with the yeast and sugar?

Yes or no

Answers

The key ingredient for making fluffy bread is yeast. Yeast is a single-celled fungus, which is alive and must make its own energy to survive. The yeast in your bread uses a process called cellular respiration, where glucose is converted to ATP and carbon dioxide. The carbon dioxide is what causes the bread to rise.

Biological Processes in lakes

Answers

Answer:

Explanation:

The aquatic environment is shaped by complex interactions among a variety of physical, chemical, and biological factors. For example, physical factors such as climate, land topography, bedrock geology, and soil type influence the amount of water flowing in streams and discharging to lakes, as well as the types of materials (chemicals and particulates) found in the water. In turn, these physical and chemical factors support a community of biological organisms unique to a water environment.

As wind passes over a mountain, the side over which the wind rises tends to be ____________________ and the side that experiences the downward movement of air tends to be ____________________.

drier; moist and rainy

moist and rainy; drier

rainforest; desert

desert; rainforest

Answers

Given what we know about the effects of air currents on mountain ranges we can confirm that the correct option is option B, moist and rainy on one side while being dier on the other.

Mountains are described as having two sides in regards to their relationship with the air currents. The side of the mountain on which the wind rises is known as the windward side, whilst the side on which air descends is known as the leeward side. The windward side is typically in contact with warmer, moist air from the ocean and other bodies of water.

When coming in contact with the mountain, the air is forced to rise and begins to cool, which often leads to rain or snow. The leeward side of the mountain receives the air that has now already lost the majority of its moisture with its pass through the windward side of the mountain. This air also tends to become warmer as it descends, which explains the dry nature of the leeward side of mountains.

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Answer:moist and rainy; drier

Explanation:

Define what is meant by specialised.

Answers

Answer:

Definitions of specialised. adjective. developed or designed for a special activity or function. synonyms: specialized specific. (sometimes followed by `to') applying to or characterized by or distinguishing something particular or special or unique.

Explanation:

MARK ME AS A BRAINLIST PLZ

It means each (cell) is specialized for a particular function, for example nerve cells receive and transmit nerve impulses while white blood cells can change shape and do their own function, these were 2 examples there are way more.

Which is a structural adaptation an octopus would use for movement?
(For Connexus Middle School)

A) the ability to release a cloud of ink

B) camouflage

C) suction cups on limbs

D) limbs that release when trapped

Answers

Correct Answers:

suction cups on limbs

Hibernation reduces the energy required for survival.

The breathing rate of the lizard will change with temperature, because it is an ectotherm.

Explanation:

hope it helps

 The structural adaptation an octopus would use for movement is suction cups on limbs.

What is octopus?

Octopuses are highly clever creatures that have mastered camouflage and have developed a variety of cunning strategies over tens of millions of years to evade or prevent potential predators. They are able to blend in with their surroundings' colors and textures, enabling them to remain undetected.

Octopuses can quickly flee if a predator approaches by launching themselves forward by ejecting water from a muscular tube known as a siphon. Additionally, octopuses have the ability to expel a cloud of black ink that hides them and impairs an intruder's ability to smell.

Therefore, The structural adaptation an octopus would use for movement is suction cups on limbs.

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1)What are some examples of specialized cells
and what do they do?
2) Why is the specialization of cells in organisms
significant and important for homeostasis?



























any spams or scams will be reported and given a low rating

Answers

Answer:
mast cells, melanocytes, nerve cells, cardiac muscle cells
Explanation:
There are lots of examples of specialized cells, but here are four.
Mast cells - release histamine and heparin, which are important in directing the inflammatory response. These cells direct the first line of defense in preventing infection
Melanocytes - release melanin, which is a brown pigment that gives skin and hair its color. This is an important process because melanin reflects UV light, which can damage DNA in skin cells
Nerve cells - specially designed to allow nerve impulses (called action potentials) to travel throughout the body. They use electrical signals to allow the whole body to communicate
Cardiac muscle cells - responsible for muscle contraction of the heart. They have specialized structures like intercalated discs that allow rapid communication between cells. This is important because every cell in the heart has to contract at the same time to allow blood to flow properly throughout the body.
The specialization of cells in organisms is important because it allows us to do many specialized functions. Non-specialized cells are pretty limited in what they are able to do, so they are small and inefficient. Specialized cells also help prevent disease, which is the opposite of homeostasis.

I need help with dis plz?

Answers

The first answer would be correct

I need help on dis plz

Answers

Answer: Anaphase

Explanation:

do you see how the two sides of the mitosis are almost completely separated this means that this specific mitosis has already gone through metaphase, and this next step would be anaphase.

Hope this helps, have a good day.☺

What effect would the removal of a nucleotide have on the protein?

Answers

For instance, if just one nucleotide is deleted from the sequence, then all of the codons including and after the mutation will have a disrupted reading frame. This can result in the incorporation of many incorrect amino acids into the protein.

MENE
Which is the word equation for photosynthesis?
A. carbon + hydrogen + oxygen → glucose + water
B. glucose + water → carbon dioxide + oxygen
C. carbon dioxide + water → glucose + oxygen
D. glucose + oxygen → carbon + water + oxygen

Answers

Answer:

C. Carbon dioxide + water → glucose + Oxegyn

Explanation:

Number form 6CO2+6H20+ energy+ C6h1206+602

              Carbon dioxide^ Water^ sunlight^ Glucose^ Oxegyn^

the answer is c. carbon dioxide + water > glucose + oxygen

How does pollution contribute to global warming?

O lt changes the direction of major currents.
O It forms a barrier that keeps in the sun's heat.
O It makes it harder for the sun's rays to reach Earth.
O It makes it more difficult for sea life to survive in the ocean.

Answers

Pollution contribute to global warming by  (B). It forms a barrier that keeps in the sun's heat.

Meaning of Global Warming

Global warming can be defined as the process by which the earth surface is heated and its temperature is raised up leading to a climate change that affects all the inhabitants of the earth.

In conclusion, Global warming has done more harm than good and in recent times it has really led to a variation in climates

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PLEASE HELP ANYONE WILL MARK BRAINLIST!!!!!
The Law of Conservation of Mass can be stated as "mass is neither created nor destroyed in chemical reactions. In other words, the mass of any one element at the beginning of a reaction will equal the mass of that element at the end of the reaction." 1

4. Use CER (claim evidence reasoning) to explain that the net reaction for photosynthesis is an example of the Law of Conservation of Mass. Be sure to compare the number of atoms of each type of chemica element in the reactants to the number in the products.
Claim: Photosynthesis (is / is not) an example of the Law of Conservation of Mass.
Evidence: (What did you see in the activity that helped you make this decision? Be sure to compare the number of atoms of each type of chemical element in the reactants to the number in the products.)

Reasoning:​

Answers

Explanation:

The Law of Conservation of Mass can be stated as "mass is neither created nor destroyed in chemical reactions. In other words, the mass of any one element at the beginning of a reaction will equal the mass of that element at the end of the reaction."

Which of the following IS NOT a model of motivation?
A. Self-actualization B. Cognitive
C. Expectancyvalue D. Psychoanalytical

Answers

Positive reinforcement is not a component of expectancy model of motivation. Positive reinforcement can be defined as giving something to the subject when they perform the desired action so they associate the action and do it more often and hence, positive reinforcement is not related to expectancy model of motivation.

An internal act or process that aids the individual conduct to achieve the purpose. The model of motivation includes the strategies, goals, and influences that lead the person to follow the decisions.

The following is not the model of motivation:

Option D. Psychoanalytical

Model of motivation can be explained as:

Self-actualization is the realization of potentials and talents possessed by individuals.

The conscious intellectual activity is called cognitive and affects motivation.

The attitude of individuals towards the action and problems are called expectancy values.

Therefore, psychoanalytical is not a model of motivation.

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Describe what an ecosystem is.

Answers

Answer:

An ecosystem is a geographic area where plants, animals, and other organisms, as well as weather and landscape, work together to form a bubble of life. Ecosystems contain biotic or living, parts, as well as abiotic factors, or nonliving parts. Biotic factors include plants, animals, and other organisms.

Explanation:

An ecosystem is a geographic area where plants, animals, and other organisms, as well as weather and landscape, work together to form a bubble of life. Ecosystems contain biotic or living, parts, as well as abiotic factors, or nonliving parts. Biotic factors include plants, animals, and other organisms.

what is one variable that friction depens on
A. how much light there is
B. the color of the objects
C. how hard the surface of the objects are being pressed together

Answers

C. how hard the surface of the objects are being pressed together. :)

Why is Dr. Elizabeth Cochrans sensor important to earthquake research? How can it help develop an earthquake warning system?

Answers

Answer:

Because Without Earthquake Research Earth Will Be DESTROYED

Answer:

Because with an early earthquake warning system everywhere people will have time to take cover

Explanation: please give me a brainlist

thanks

HELP ASAP HURRRRRRRYYYY

Answers

Dictatorship is the 100%right answer


21. Which of the following is not a biologically important property of water?
A. Has a low heat of vaporization
B. Acts as an excellent solvent for polar and ionic substances,
2. Has a high specific heat,
D. Is less dense as a solid that as a liquid,

Answers

Answer: A because water has a high heat vaporization

might be wrong

Explanation:

Summarize the features of a safe and sanitary composting facility. Explain the role played by each feature. (Not Multiple Choice, pls answer quickly!)

Answers

Given what we know about sanitary procedures, we can confirm that the features of a safe and sanitary composting facility lie in proper employee hygiene.

The most important part in limiting the pathogenic impact of compost is that of employee hygiene, which includes:

Thorough hand washing after handling compostKeeping the compost free of dust Keep any and all cuts covered at all timesThe employees must have proper vaccination protection before handling compost.

These are the features of a safe and sanitary composting facility and their role is to limit the effect and spread of pathogens that may result from the build-up of compost.

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