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Katyanochek1 [597]
2 years ago
11

True or False; Diversity of life has decreased over Earth's history.

Biology
1 answer:
sammy [17]2 years ago
4 0

Answer:

true

Explanation:

Just think about extinction and how many species we have lost throughout time.

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What would happen if there were no abiotic factors in an ecosystem?
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Answer:

Plants would be unable to grow and produce oxygen for the animals.

Explanation:

Sunlight, which supports plants, is considered an abiotic factor. If there were no sunlight, plants wouldn't be able to grow, which means no oxygen for many living things found in that specific ecosystem. In other words, that ecosystem would become uninhabitable.

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Which type of substance adds nutrients to the soil that plants take in through their roots?
gulaghasi [49]

The answer is A. Fertilizer

The other answer choices don't make sense Herbicide is a poison that kills plants, Pesticide is an insect killer, while a Growth Hormone is designed to help the plant grow not to put nutrients into the soil.

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3 years ago
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2 years ago
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alukav5142 [94]

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5 0
3 years ago
Read 2 more answers
Which chromosomal defect is caused when part of a chromosome breaks off and reattaches backward on the same chromosome?
Y_Kistochka [10]
Deletion is when a part of the chromosome is deleted. (Removed)
Insertion is when part of our chromosome has an extra bit added to it.
Translocation Is when one part of the chromosome is moved to another chromosome.

The correct answer is inversion, to invert means to turn upside down. So when part of the chromosome is taken off but attached backwards (turned upside down) we call it inversion

Hope that makes sense
8 0
1 year ago
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