1.- How does photosynthesis contribute to the survival of humans?
2.- Explain the effect cyanobacteria had on the early atmosphere of Earth and the evolution of life?
3.- Suppose chromosomes in skin cells are damaged by ultraviolet radiation. If the damaged gene does not affect the cell cycle, do you think the cell will become cancerous?
4.- How is mitosis involved in the healing of a wound?
5.- How is the cell cycle-related to the growth and maintenance of an organism?
6.- What role does differentiation play in the cell cycle?
7.- Explain the connection between the cell cycle and cancer development?
8.- Must the cell cycle always proceed in the same direction, or is it possible for the cell cycle to proceed in the opposite direction? Explain your reasoning.
9.- Explain how crossing over provides evidence to support the claim that meiosis increases genetic variation.
10.- Why is it important that human gametes have half a set of DNA instead of a full set of DNA?
11.- In what ways is ATP like a fully charged battery?

Answers

Answer 1

Answer: By storing carbon above and below the ground, the trees and plants in forests contribute to the production of oxygen as a byproduct of photosynthesis. ... Photosynthesis provides most of the oxygen that humans and animals breathe.


Related Questions

CAN SOMEBODY PLEASE JUST ANSWER THIS ONE BIOLOGY QUESTION!!!! I MEAN NOBODY ANSWERED MY OTHER ONES HARDLY!!!!! I GUESS NOBODY KNOWS BIOLOGY GOOD!!!! I SURE DONT SO IM NOT REALLY MADD!!!!!!!

Answers

Answer:

Increase the points, answers will pour in

Explanation:

nobody wants to answer tough questions for only 5 points.

(please give brainliest)

ASAP IMAGE IS ATTACHED THIS IS NOT DIFFICULT


There are only 4 types of nucleotides in mRNA and 20 types of amino acids in proteins. This figure shows how 4 types of nucleotides can provide a unique code for each of the 20 types of amino acids.

6a. The mRNA code for each type of amino acid is a

sequence of _______ nucleotides, called a codon.
(2 / 3 / 4)

6b. In the figure, which mRNA codon codes for the amino acid Phe?

Answers

Answer:

The mRNA code for each type of amino acid is a  sequence of three nucleotides, called a codon.mRNA codon that codes for the amino acid Phe es UUU.

Explanation:

The messenger RNA (mRNA) has in its structure sequences of 4 nucleotides adenine, uracil, guanine and cytosine. The possible combinations of these nucleotides to group into triplets is 64 codons to form 20 amino acids, from which it can be concluded:

An amino acid can be encoded by more than one codon. From these combinations the three STOP codons are obtained.

A mRNA codon is a sequence of three nucleotides that serves to encode an amino acid.

Phenylalanine (Phe), according to the image, is formed with the UUU codon.

What are the two most influential abiotic factors in determining biotic factors of an area?

Answers

Answer:

Grazing and predation are biotic factors; pH and temperature are abiotic factors.

Explanation:

Hope this helps.

Which conditions are required for natural selection? Select three options. Populations have genetic variation.Organisms overproduce offspring.Environmental conditions remain stable.Traits are passed on to only some of the offspring.Nature selects favorable adaptations.

Answers

The conditions required for natural selection are populations have genetic variation, organisms overproduce offspring and nature selects favorable adaptations.

What is natural selection?"Natural selection is the process through which populations of living organisms adapt and change."In order to adapt and survive in a changing environmental conditions, the organisms undergo into some changes (changes in traits) over time which leads to genetic variation among them. The best adapted characters/traits of organisms will survive and will creates its progeny (having new traits). It means that nature selects the most favorable adaptations.What do you mean by genetic variation?"It is a term used to describe the variation in the DNA sequence in each of our genomes."What is adaptation?"It is the biological mechanism by which organisms adjust to new environments or to changes in their current environment."Example: To reduce transpiration leaves of some plans are modified into spines.

Hence, the correct options are: 1. Populations have genetic variation. 2. Organisms overproduce offspring. 5. Nature selects favorable adaptations.

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Answer:

The conditions required for natural selection are populations have genetic variation, organisms overproduce offspring and nature selects favorable adaptations.

Explanation:

How do Newton’s laws of motion explain why it is important to keep the ice smooth on a hockey rink so that players can pass a puck as quickly as possible?

Smooth ice reduces the inertia of the hockey puck.
Smooth ice increases the force used to accelerate the hockey puck.
Smooth ice reduces the unbalanced forces that would slow the hockey puck.
Smooth ice decreases the reaction force that the ice exerts on the hockey puck.

Answers

It is important to keep the ice smooth on a hockey rink because this reduces the unbalanced forces that would slow the hockey puck.

Frictional forces

Frictional forces are opposing forces to the motion of an object on a platform.

In order to be able to pass a puck as quickly as possible on a hockey rink, there should be a minimal frictional force on the ice surface on which the puck moves.

With minimal opposing forces, the puck will move as unhindered as possible and passing as fast as possible would be easy.

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Answer:

C

Explanation:

A structure within a cell that performs a specific function is a(n)
A. organelle
B. organ
C. endoplasmic reticulum
D. flagella​

Answers

Answer:

A structure within a cell that performs a specific function is an organelle.

Explanation:

An organelle is a structure inside the cell that preforms functions that are necessary for the cell.

Examples of organelles are the ER, the Golgi Apparatus, and the Mitochondria.

Hope this helps.

A structure within a cell that performs a specific function is an organelle. An organelle is a subcomponent of a cell.

What are cell organelles?

Cell organelles are the ultrastructure's present in the cell and they show division of labor.

These organelles perform specific function for the cell and thus constitute the framework of all living organisms.

The basic structure of cell contains a plasma membrane, nucleus and cytoplasm. However, ultra-microscopic structures are embedded in the cell cytoplasm and they are designated as organelles in a cell.

Endoplasmic reticulum, Golgi apparatus, mitochondria, ribosomes, microtubules, lysosomes etc. are the specialized organelles present in cell.

Each of these organelles perform specific function. For instance, mitochondria help in energy production, Golgi helps in protein modification and packaging.

Cell organelles are thus important structural and functional elements of a cell.

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What is one way people have negatively affected land resources?
A) Habitat restoration
B) Urbanization
C) Terrace farming
D) Reforestation

Answers

Answer:

b

Explanation:

Urbanization is one way people have negatively affected land resources. Therefore, the correct option is B.

What is Urbanization?

The process of urbanization occurs when the percentage of a country's population living in urban areas increases. This is a result of rural-urban migration, which occurs when people move from rural to urban areas in search of better job prospects, social services, and living standards. Urbanization has both beneficial and harmful effects on the environment and society.

On the plus side, urbanization can promote economic growth, better infrastructure, and greater access to social services, including healthcare, education, and social assistance. Additionally, it helps reduce stress on rural communities, which may experience issues of resource scarcity, resource overabundance, and environmental degradation.

Therefore, the correct option is B.

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Which of the following is the main cause of earthquakes?

Answers

Answer:

Its plates shifting , making the ground ``shiver``

Explanation:

Which characteristic did the ancient Greeks believe most distinguished them from "barbarians"? * A.Religion B. Skin color C.Language D.Dress E.Hairiness​

Answers

Answer: It is A religion

Explanation: I got it right on the assignment.

Why do temperatures differ between air, land, and water?
(science btw)

Answers

Answer:

The ocean water isn't moving into or through the atmosphere as a result of the sun's heating of the water, convection isn't the process influencing air and water temperature difference. The heat of the ocean is being given off radiated into the air, as a result making the air substantially warmer

Explanation:

How many dots would surround Li in an electron dot diagram?

Answers

Answer:

2

Explanation:

FOR A TEST!!
TRUE OR FALSE??
Consumers in an ecosystem get food molecules for cell respiration by eating other organisms including producers. Then, they perform cell respiration to use energy in food molecules to make ATP.​

Answers

The question Is true

What are the different levels of the energy pyramid called?
I need an answer asap!

A. Tropic Levels

B. Wed Levels

C. Chain Levels

D. Producer Levels

Answers

Answer:

i think that it is the tropic level there m8

Explanation:

It’s the Topic level

____________ polymerase is used to add new RNA nucleotides to make RNA.

Answers

RNA polymerase is used to add new RNA nucleotides to produce RNA.

RNA polymerase

It is the enzyme responsible for copying the sequence of DNA into the sequence of RNA during the process of transcription.

The information encoded in DNA is used to produce RNA during the process of transcription.

The production of RNA takes place by the enzyme RNA polymerase, by using the antisense strand of the DNA as the template by supplementing the complementary RNA nucleotides to the 3 prime terminal of the developing strand.

The enzyme RNA polymerase combines with the DNA at a sequence known as the promoter at the time of the beginning of transcription.

Thus, the given blank can be filled with RNA.

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Bands of hard and soft rock can lead to what landform.


Spit

Headlands and bays

Wave-cut platform

Answers

Answer:  the answer is headland :) Headlands are formed when the sea attacks a section of coast with alternating bands of hard and soft rock.

Explanation:

A particular mouse found in northern Canada has a light gray coat in the colder winter months but in the summer months has a dark brown coat. What can you say about this change?

Answers

Answer:

It changes based upon the weather for camaflouge

Lava is rock that has undergone a physical change and has liquefied. What is known about this change?

The lava gained mass.
The lava was burned into smoke.
The lava can cool back into rock.
The lava lost mass.

Answers

Answer:

The lava can cool back into a rock

Explanation:

Physical changes can be reversed. Hence, the lava can cool back into rock.

What are physical changes?

Physical changes are changes that happen to the physical properties of materials only. They are usually reversible when subjected to appropriate conditions.

In this case, the lava rock changed from a solid to a liquid as a result of melting at high a temperature. Once the liquefied rock is cooled, it will return back to being solid.

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How does earth get heat ?

Answers

The heat source for our planet is the sun.

Planets with atmospheric ________ are warmer than those without.

A. air
B. gases
C. dust
D. temperatures

I think it's either A or B, but I'm not sure.

Answers

B, Gases. The gases create an insulation around the planet so it keeps in heat from heat sources.

Answer:

The answer is B; Gasses

What did Darwin believe?
A. Darwin believed that all organisms have a common ancestor.
B. Darwin believed that all organisms were created simultaneously by the force of nature
C. Darwin believed that all organisms have descended from two different ancestors.

Answers

Answer:

A

Explanation:

Evolution is one species evolving into another

What is the definition of malignant?

Answers

Answer:

Malignant cells can invade and destroy nearby tissue and spread to other parts of the body.

Answer:

(of a disease) very virulent or infectious. a

Explanation:

(of a disease) very virulent or infectious.

I need help here is the question and the choices

Answers

Answer:

pretty sure it's Free living/symbiotic bacteria

Explanation:

sorry if I'm wrong but the bacteria helps with the process

the basic unit of structure and function in a living thing is called a

Answers

I’m pretty sure that the answer is

Cell
A cell hope that helps

Animal cells are eukaryotic and bacteria cells are prokaryotic. This is because?

Answers

Answer:because eukaryotic cells are multicellular and prokaryotes are unicellular.

Explanation: multicellular are more complex than unicellular

If you could be any animal, what would you be? And why?

Answers

Answer:

A cat

Explanation:

Because if I were a pet cat at least someone would take care of me and I would not have to do any real things like responsibilities.

how do the geocentric and heliocentric models of the solar system differs?​

Answers

Answer:

The main difference is that the geocentric has the Earth at the center, and the heliocentric has the sun at the center.

Answer:

The geocentric has the Earth at the center while the heliocentric has the sun at the center.

Explanation:

:)

How does the genetic diversity of the English bulldog relate to the breed’s future viability?

Answers

Answer:

This study examines genetic diversity among 102 registered English Bulldogs used for breeding based on maternal and paternal haplotypes, allele frequencies in 33 highly polymorphic short tandem repeat (STR) loci on 25 chromosomes, STR-linked dog leukocyte antigen (DLA) class

Explanation:

What height in meters must the student climb in order to reach the top of the hill?

Answers

Answer: 256 or 300 sorry if i was incorrect

Explanation:

The student must reach the top of the hill, and this is entirely dependent on the hill's elevation, which varies from one area to the next and is not constant in any particular area.

What is the significance of the hill in the ecosystem?

The hill is the highest point on Earth and plays an important role in ecosystems because it can provide a variety of different habitats for plants and animals as well as act as barriers that separate different ecosystems, such as the forest ecosystem present on one side of the hill from the grassland ecosystem present on the other side of the hill, and it is also a depositary of minerals and other resources.

Hence, the student must reach the top of the hill, and this is entirely dependent on the hill's elevation, which varies from one area to the next and is not constant in any particular area.

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Which of these organisms is capable of cellular respiration?
1. Kelp
2. Urchins
3. Otters

Answers

Answer:

Otters

Explanation:

Cellular respiration is the process of the cells inside the body breaking up the sugars and then the mitochodria turns it into energy for the cells. ... Inside the otter diffusion happens throughout the lungs.

Whats TWO Answer Giving Brainliest To first Correct AnSwEr:D......... could it be D or C or C or B

Answers

Answer:

I'd think the Answer is A since usually people die from dehydration or a stroke. A or B in my opinion.

Explanation:

it is b and c, hope this helps!
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