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Gelneren [198K]
2 years ago
6

How do you think scientists figure out the life cycle of a star

Biology
1 answer:
Sauron [17]2 years ago
8 0

Answer:

space

Explanation:

they figured it out going to space and since a star is a small peice of the sun they can't touch it it's impossible without getting heat burns or dying so they ither observe a star using a telescope or went to space for days

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How do the chromosomes in gametes produced during meiosis differ from those in somatic cells produced during mitosis
dimaraw [331]

Mitosis produces two diploid (2n) somatic cells that are genetically identical to each other and the original parent cell, whereas meiosis produces four haploid (n) gametes that are genetically unique from each other and the original parent (germ) cell.

MARK ME AS BRAINEST PLEASE. I WILL BEG YOU.

7 0
3 years ago
Use the drop-down menus to complete the sentences about air pollution. the burning of causes dangerous gases to enter the atmosp
Alik [6]

Air pollution is caused the burning of fossil fuels, resulting in the formation of smog and acid rain.

<h3>What is air pollution?</h3>

Air pollution is the release of harmful substances into the air which makes it unfit and unhealthy for breathing.

Substance which pollute the air are known as air pollutants.

The burning of fossil fuels causes dangerous gases to enter the atmosphere. Heavy, dense fog caused by dangerous gases mixing in the atmosphere is called smog. Acid rain occurs when dangerous gases mix in the atmosphere and fall back to the surface in liquid form.

Therefore, air pollution is caused by releasing pollutants air.

Learn more about air pollution at: brainly.com/question/9420026

3 0
2 years ago
Which answer lists different behavioral responses that some animals use as defense mechanisms?Question 8 options:camouflage, mim
Crank

To answer this we need to analyze each statement

camouflage, mimicry, and stingers: This is meant to escape predation and fend off predators, so this is the correct answer.

hibernation and migration: This is meant for breeding and or food energy storage, to pass hard seasons so is also incorrect.

courtship and breeding behaviors: This is meant for reproduction and to ensure offspring so this is incorrect.

nesting and food gathering: this is a behavior for survival, resource use rather than defense, si this is not correct.

7 0
1 year ago
The mountain ash produces a bright red berry fruit. How has the mountain ash tree evolved in order to allow its seeds to be spre
NeTakaya

Answer:

The correct answer is - B. The seeds are in berries that are eaten by birds and dropped as waste away from the plant.

Explanation:

The mountain ash trees contain red berries fruits that attract birds and other organisms. These birds eat these berries and eat berries and fly over the hills or mountains and after digesting they drop the seeds of these berries with the digestive waste. These berries grow on the mountains far from the original source as birds carry them by flying away after eating.

Thus, the correct answer is option B.

7 0
3 years ago
what is the geocentric model (please give simple answer and this is for my notes so there is no choices to pick from)
Margarita [4]
Any theory that the structure of the solar system in which earth is assumed to the centre of it all.

hope this helps <3
5 0
2 years ago
Read 2 more answers
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