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mihalych1998 [28]
3 years ago
13

Why is it important that the ozone layer in the upper stratosphere is replenished?

Biology
1 answer:
harina [27]3 years ago
6 0

The ozone layer absorbs most of the ultraviolet light from the sun. UV light is harmful to organisms because it can damage the genetic material in living cells. By shielding the Earth's surface from most of the sub's ultraviolet light, the ozone in the stratosphere acts like a sunscreen for the Earth's inhabitants.

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How can natural selection affect a predator-prey relationship in an ecosystem?
Debora [2.8K]
B Nature selection for traits the allow for increased rates of reproduction and survival over traits that don't, is correct.   

A is also correct
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3 years ago
Individuals who have favorable traits will likely have ______ offspring.<br><br> less
oksian1 [2.3K]
If less is the only option then go with that like your question suggests but more feels like a better answer

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Plants obtain energy by __________. Group of answer choices Performing photosynthesis breaking down dead things all of the answe
Natali [406]

Answer:

Performing photosynthesis

Explanation:

7 0
2 years ago
What causes genetic variation in a population
Gre4nikov [31]

Answer:

A lot of factors cause genetic variation in a population. The root of all genetic variation is mutations, which occur randomly.

A lot of genetic variation in fact results during meiosis, the process by which gametes (sex/reproductive cells) are formed. The 3 main ways are crossing over, independent assortment of chromosomes, and random fertilization. Crossing over occurs during Prophase I of meiosis, in which genetic material is exchanged between nonsister chromatids of homologous chromosomes. Independent assortment refers to the following: When cells divide during meiosis, homologous chromosomes are randomly distributed during anaphase I, separating and segregating independently of each other.  Random fertilization is where any sperm can fertilize any egg cell. The many combinations of eggs and sperms mean variation.

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8 0
3 years ago
Ten biotic and five abiotic factor in an ecosystem
Artyom0805 [142]
Biotic:
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Plants: same as animals, but with plants they reproduce asexually meaning it requires only one organism to produce another life. Anything with cells in them are consider a living thing.

bacteria: same as plants and animals, they have cells so they are consider a living thing.

There are other types of biotic factors out there like producers, consumers and decomposes. Here are the ten things of biotic:
1. Bamboo plants (producers)
 2. Banana Trees (producers)
 3. orchids (producers)
4. Seaweeds (producers)
5. anteater (consumers)
6. Bears (consumers)
7.zooplankton (consumers)
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9. earthworms (decomposers)
10. termites (decomposers) 

Those are the ten examples of biotic.

Abiotic:
Some of the examples include temperature, sunlight, soil, gases and atmospheric, these are consider the non-living things but here are 5 examples of abiotic factors in the ecosystem.
1. Altitude
2.pollution
3.soil
4.wind
5. Ph

Hope this helped :)
Have a great day 

  
7 0
3 years ago
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