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dlinn [17]
3 years ago
7

A Substance directly involved in cellular communication

Biology
1 answer:
stira [4]3 years ago
7 0
Hormone is a substance that directly involved in cellular communication within the human body.
Hope this helps!

-Payshence xoxo
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What describes the relationship between a dominant and recessive allele?
mezya [45]

Answer:

Dominant refers to the relationship between two versions of a gene.

Explanation:

Individuals receive two versions of each gene, known as alleles, from each parent. If the alleles of a gene are different, one allele will be expressed; it is the dominant gene. The effect of the other allele, called recessive, is masked.

7 0
2 years ago
Use mathematics to calculate how much of the energy is left in the third trophic level? if each level in a food chain typically
pav-90 [236]

Answer:

10 kcal.

Explanation:

The third trophic level receives 10 Kcal from the second trophic level while on the other hand, 90 Kcal energy releases in the atmosphere in the form of heat energy. The producers has 1000 Kcal energy from which only 100 Kcal is transferred to the primary consumer or second trophic level while the remaining 900 Kcal releases in the form of heat energy in the atmosphere and then only 10 Kcal energy is transferred to third trophic level while the remaining 90 Kcal releases in the atmosphere.

4 0
3 years ago
Who are the consumers of the organism represented by the blue arrow?
GenaCL600 [577]
I thinks is us because we consume what we want
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6 0
3 years ago
PLEASE HELP
AveGali [126]

Answer:

A

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But more precipitation can reduce salinity.

6 0
3 years ago
The purine bases are :
Ipatiy [6.2K]

Answer:E. Adenine and Guanine

Explanation:

They are  double <u>double carbon- nitrogen rings with  four nitrogen atoms</u> bases  found  in  DNA and RNA. Purines always pair with pyrimidines(cytosine and thymine)  to form a double helix structure.This precise paring ensured that the DNA has a complementary structure.

This paring of purines with pyrimidines is by hydrogen bonds. This is to ensure easily unwinding during replication, that is formation of new DNA molecules.

purines bases are also used for  cell protein synthesis fro cell division.  

8 0
3 years ago
Read 2 more answers
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