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kykrilka [37]
3 years ago
12

Which statements describe the importance of the nitrogen cycle of livings things?

Biology
1 answer:
const2013 [10]3 years ago
5 0

Answer:

It helps cells to make proteins.

It provides a source of water

It provides form of usable Nitrogen.

It removes carbon dioxide from the atmosphere.

It destroys harmful bacteria.

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Why did short plants reappear in mendel’s F2 generation?
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Answer:

Because the F1 plants all had a lowercase a/short plant allele, there was a 25% chance that two plants would contribute it to their offspring and they both did sometimes to make a aa offpsring.

Explanation:

All the F1 plants were heterozygous, so when they were crossed, the resulting genotypic ratio was 1 AA : 2 Aa : 1 aa.  As you can see, this is the first time since the parent generation that there is a aa genotype and short plant phenotype, so that's why short plants reappeared.

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System contains glands that secrete hormones into the bloodstream, whereas the
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Complete question:

___BLANK___ system contains glands that secrete hormones into the bloodstream, whereas the ___BLANCK__system secretes substances through ducts.

Answer:

The ENDOCRINE system contains glands that secrete hormones into the bloodstream, whereas the EXOCRINE system secretes substances through ducts.

Explanation:

Those tissues that produce hormones might be classified as:

  1. endocrine glands (produce hormones exclusively),
  2. exocrine glands (produce hormones and other secretions),
  3. non-glandular tissues that secrete hormones but are not glands.
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  • Exocrine glands release their secretions to a duct of different tissues where they act, such as the internal or external surface of cutaneous tissues, stomach mucose, or pancreatic ducts.
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In part A, you analyzed genes that contribute to two diseases. How can scientists use this information to develop new treatments
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Yes scientist will need to develop multiple treatments to control symptoms.

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