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

e Sudan Black
7. How many water molecules are removed when Sucrose gets broken down into glucose and
fructose?
a. 1
b. 2
C. 3
d None

Answers

3 hope this helps!!!!!!!!!!!!!!!
3 I am pretty sure!!!!!!!!!!!!!

6. Which list of characteristics describes organisms classified as animals?

Answers

Answer:

Animals are heterotrophs; they must consume living or dead organisms since they cannot synthesize their own food and can be carnivores, herbivores, omnivores, or parasites

Explanation:

HELP I NEED FAST PLZZZ Belinda wrote the following phrase to describe the movement of particles in a state of matter.

"Marbles glide past one another."

Which state of matter did Belinda most likely describe?

Answers

Answer:

Liquid

Explanation:

Its liquid!!!

What is the third part of cell theory?
All cells come from pre-existing cells
All cells contain DNA
All cells contain a nucleus
All cells maintain homeostasis

Answers

Answer:

Explanation:

All cells come from pre-existing cells

All cells come from preexisting cells

**EMERGENCY IN TEST RN** How did the offspring end up with traits that are different from the traits of their parents?​

Answers

Answer:

the inherited recessive genes. recessive genes could lay dormnant for generations before showing themselves

Which organisms should be classified in more than one trophic level?

Answers

A trophies level pertains to the position of an organism in the food chain. Humans are the most dominant organism that belong to more than one trophies level. When we eat plants we become the secondary or the tertiary consumers.

Birds are also organisms that belong to more than one trophies level. When birds eat seeds they become the primary consumer, but when they eat insects they become the secondary or even the tertiary consumers.

Why do levels of photosynthesis change based on location and time of the year?

Answers

Answer:

Because of the Earths rotation

Explanation:

Hope this helps

Answer:

Being in a hot climate can destroy the stage of photosynthesis or a cold climate, and if in the winter, it can get really cold, or in the fall windy...

Explanation:

Unit 4 review grade 5

Answers

Answer:

theress no question

Explanation:

Answer:

you left me speachless and where is the photo how am i soupposed to do your work if i dont know what im doing

btw the answers 4

Explanation:

Students are conducting a lab estimating the time it takes for the cell cycle in normal chicken cells. They find that the average time for one complete cell cycle is 22 hours.
What differences would they expect to see in cancerous chicken cells?
A Cancerous chicken cells will spend more time in interphase.
b Cancerous cells will not complete all phases of the cell cycle.
c Cancerous chicken cells will complete mitosis in a shorter amount of time.
d Cancerous chicken cells and normal cells will have the same total time to complete the cell cycle.

Answers

Answer:C!

Explanation:

Cancerous chicken cells will complete mitosis in a shorter amount of time.

The difference they would expect to see in cancerous chicken cells is cancerous chicken cells will complete mitosis in a shorter amount of time. The correct option is c.

What are cancerous cells?

Cancerous cells are those cells that cause cancer in organisms. These cells are the converted form of normal cells. The normal cells are converted into cancerous cells by the means of mutagens.

The cell cycle is the cycle of the division of a cell. The cell divides itself and forms a new daughter cell. That's how a body increases the older cells to divide and produce new cells. The process is called mitosis.

Now, the normal cells divide at a constant and normal rate that is needed, but the cancerous cells divided abnormally and rapidly which cause tumor in the body.

Thus, the correct option is c. Cancerous chicken cells will complete mitosis in a shorter amount of time.

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Study the organ systems in the diagram below.
rema
The organ system that filters and removes waste from the human body

Answers

Answer:

The urinary system filters and removes waste from the human body

I need to know number 7. anything will help

Answers

Answer:

I'm not sure of the answer but I do believe it is C The Great Lakes

In ____ ecosystem decomposers breakdown dead or decaying organisms, returning nutrients to the soil to be used by plants.
a. An unstable
b. A balanced
c. A defective

Answers

a balanced ecosystem
A balanced is the answer :)

PLEASE THIS IS NOT DIFFICULT I WILL MARK BRAINLIST



4. Explain why transcription must occur in the nucleus.



5. Why does a cell need to carry out transcription before translation?

Answers

Answer:

4. Transcription takes place in the nucleus. It uses DNA as a template to make an RNA molecule. RNA then leaves the nucleus and goes to a ribosome in the cytoplasm, where translation occurs. Translation reads the genetic code in mRNA and makes a protein.

5. Transcription needs to occur before translation because the product of transcription, messenger RNA (mRNA), is the starting material for translation.

What is the best way to describe the concept of “homeostasis”.

Answers

^^^^^^^^^^^^^^^^^^^^

Can Someone Help Me Please

Answers

Answer:

its a

Explanation:

it genetics thats get passed down from parents

Answer:

A. The passing of characteristics from parent to offspring

Explanation:

Which of The following are challenges to implementing sustainable farming practices? Select two correct answers.

a. increased need for fertilizer
b. lack of pollinating insects
c. higher initial costs
d. increased erosion
e. increase labor costs

Answers

Answer:

I think its A and E

Explanation:

^^^^^^

The challenges to implementing sustainable farming practices: higher initial costs;  increase labor costs.

What is  sustainable agriculture?

It is an integrated system which includes both plant and animal farming practices, which hence has a minimum effect on the environment. It involves using substances of natural origin and hence meets the needs without causing an adverse impact on the environment.

What are its advantages?It prevents pollution since the waste remains in the farm's ecosystem.There is a reduction in the production of waste, and the waste of one is used in the other.It saves energy as there is a lower requirement for non-renewable resources.It doesn't use agrochemicals.It involves methods that reduce soil erosion, like managing irrigation, covering the soil with tillage.What are its disadvantages?It takes more effort since the use of machines is minimal.Limited use of land and hence, mass production is not possible.What are the challenges?New farmers have to struggle with high labor demand since it involves less use of machines and hence more workers are required.Before harvesting their first crop, young farmers require a huge sum of up-front capital, which is even more for biologically diverse farms.

Hence the correct options are (c) and (e) higher initial costs;  increase labor costs.

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Which factor is most important for determining the phase in which a substance exists?
A. its volume
B. its density
C. its temperature
D. its mass

Answers

Answer:

The answer is Mass

would the answer be B?

Answers

Answer:

yes it should be B.

Rhinos and zebras will often be seen with small birds known as Oxpeckers on their back. This is because the Oxpeckers eat the parasites and other bugs that live on the zhino or zebra's skin. What type of ecological relationship is this?

1 Commensalism

2 Predation

3 Parasitism

4 Mutualism​

Answers

Answer:

4. Mutualism

Explanation:

mutualistic relationship

Answer: 2

Explanation:

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Blood type is controlled by the inheritance of any two of the following alleles: IA, IB, or i. IA codes for type A blood. IB codes for Type B blood. Both IA and IB are codominant. The i allele is recessive and will cause Type O blood whenever two copies of the allele are present.

If a mother has Type AB blood (IAIB) and a father has Type O blood (ii), what percentage of their children are likely to have Type A blood?

A. 25%

B. 50%

C. 100%

D. 0%

Answers

IAIB   X      iifrom this image you can deduct that the correct answer to this question is B.50%

Answer:

B

Explanation:

A mutation that could be inherited by offspring would result from-?

Answers

Answer: Along with substitutions, mutations can also be caused by insertions, deletions, or duplications of DNA sequences. Some mutations are hereditary because they are passed down to an offspring from a parent carrying a mutation through the germ line, meaning through an egg or sperm cell carrying the mutation.

Explanation:

A mutation that could be inherited by offspring would leads from a base substitution in gametes during meiosis. The correct option is D.

What is mutation?

Any alteration to a cell's DNA sequence. Alterations in cell division can result in specific mutations.

As can exposure to environmental DNA-damaging substances. Mutations may be negative, positive, or ineffective.

Errors in DNA replication during cell division, exposure to mutagens, or viral infection can all cause mutations.

Somatic mutations (which happen in body cells) cannot be passed on to offspring, whereas germline mutations (which happen in eggs and sperm) can.

A base substitution in gametes during meiosis would result in a mutation that might be passed on to progeny.

Thus, the correct option is D.

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Your question seems incomplete, the probable complete question is:

A mutation that could be inherited by offspring would result from-?

What are the Reactants of Respiration?

a
Water and sunlight
b
Carbon dioxide and Sunlight
c
Food and Oxygen
d
Carbon dioxide and water

Answers

Answer:c.food and oxygen

Explanation:A and B are wrong because respiration does not need sunlight. D us wrong because CO2 are products if respiration, not reactants.

What is the definition of totipotent?

Answers

Answer:

This is what it means,

Explanation:

of an immature or stem cell) capable of giving rise to any cell type or (of a blastomere) a complete embryo.

"totipotent embryo cells can differentiate into a hundred different cell types specialized to form such tissues as skin, marrow, and muscle"

Answer:

(of an immature or stem cell) capable of giving rise to any cell type or (of a blastomere) a complete embryo.

Explanation:

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.

If a link is removed or destroyed in the food chain of a biome, the chain will be disrupted.
True or False
Plz hurry

Answers

True because when you take it out it affects it both ways

It is true because any food chain needs every link, if it is missing even 1 link another will fail eventually.

Artificial selection has produced a wide variety of crop plants, livestock, and pets. Which characteristic of artificial selection makes it different from natural selection

Answers

Answer:

Genetic Problems

Explanation:

When people genetically modify animals, they can mess up a lot of their natural abilities. For example in some cases scientist have made cows who produce more milk, but couldn't reproduce anymore because of it. Sometimes it even hurts the animal. People have bred dogs in certain ways that makes it hard for them to breathe, like Bull dogs who has respiratory issues. This makes decreases their life span and continuing to bred them will only make it worse. When scientist have a certain trait they want they also make animals breed with their own families. Incest creates a lot of genetic problems.

I hope this helped.

Every monarch butterfly migrates. This statement _______. A) is true B) can be made true by change "Every" to "No" C) can be made true by deleting "monarch" D) can be made true by changing "Every" to "The final generation

Answers

Answer:

The answer is option A "Is True"

Explanation:

The Monarch is notable for its capacity to travel significant stretches, and the migrations in North America are one of the best common marvels on the planet. This butterfly is additionally periodically recorded from the English Isles, making it our biggest and most extraordinary traveler butterfly.

Each fall, a great many ruler butterflies move 3,000 miles from their favorable places in northeastern North America to spend the colder time of year in the timber lands of southwestern Mexico. Every movement is by new generation, so they can't gain from others. All things being equal, they depend on their qualities. Their antennae have a genetic clock that reveals to them when to move and to explore they measure the sun's situation not too far off with their eyes.

Which organism has the least amount of energy in this food web?

Answers

Answer:

Eagle

Explanation:

Energy lessons the higher the animal is

Ex-

1000 plant

100  deer

10 wolf

i need help with this can someone help me?

Answers

Explanation:

Predation plays an important role in the overall health of an ecosystem since it regulates the population of preys as well as maintain the population of higher-level consumers. If predators were eliminated from an ecosystem, it would cause an increase of the population of preys and potentially decrease the population of other organisms on lower trophic levels. An example of such effect can be seen from the population of rabbits and plants supposing that foxes, eagles and snakes are eliminated from the ecosystem. The rabbit population will multiply, causing a decrease in the population of plants such as grass that rabbits feed on.

Hope this helps :)

Selective breeding can produce plants and animals with
A
desired traits.

B
undesired traits.

C
extra chromosomes.

D
fewer chromosomes.

Answers

Answer:

A Desired traits

Explanation:

selective breeding is the breeding animals or plants to get desired traits.

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