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spayn [35]
3 years ago
12

Without the presence of sea otters, sea urchins would otherwise overgraze kelp beds, dramatically changing the marine community

of which the urchins and otters are a part. for this reason, sea otters are considered what?
Biology
2 answers:
Rudiy273 years ago
5 0

your answer is " keystone species"

marishachu [46]3 years ago
4 0
The sea otter is considered a key stone species.
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Why does the the right testicle hang lower than the left?? PLease help i will be thank (Sorry english second language if your wo
Ber [7]

it is entirely normal for one testicle to be bigger than the other. Many people find that the right testicle is slightly larger and the left hangs lower. A difference in size is usually nothing to worry about, though it can occasionally indicate a problem.

This is perfectly normal and nothing to worry about. Either side may be slightly larger or hang lower. But be sure to tell a parent (who will let your doctor know) if you have any pain, swelling, or lumps in your testicles.

When a vein in a testicle becomes enlarged, it's called a varicocele. Varicoceles affect up to 15 percent of males. Like varicose veins in your legs, varicoceles may appear bulgy under the skin of your scrotum. They tend to form in the left testicle because the vein on the left side hangs lower.

7 0
3 years ago
How is the energy of an electromagnetic wave related to its frequency?
tino4ka555 [31]

energy carried by electromagnetic wave is proportional to the frequency of the wave

3 0
3 years ago
Why do scientists use comparisons between fossils and existing species to classify organisms?
frosja888 [35]

Answer:

Similarities among organisms lead scientists to relate organisms

Explanation:

Fossils found in sedimentary rock can be compared to one another and to living organisms to compare similarities and differences.

7 0
2 years ago
What is the amino acid sequence for the mRNA strand CACCCAUGGUGA?
krek1111 [17]

Answer:

Histidine- Proline- Tryptophan- Stop codon

Explanation:

The mRNA strand in the question is produced as a result of a process called TRANSCRIPTION. However, the mRNA transcript is further used to synthesize an amino acid sequence in a process called TRANSLATION. The mRNA sequence is read in a group of three nucleotide bases called CODON.

Each codon specifies an amino acid which is represented in the GENETIC CODE. In this case, a sequence of mRNA strand is given as: CACCCAUGGUGA

The following codons in the sequence specify the following amino acid:

CAC - Histidine

CCA - Proline

UGG - Tryptophan

UGA - Stop codon

Hence, the amino acid sequence encoded by the given mRNA strand is Histidine- Proline- Tryptophan- Stop codon.

N.B: After a stop codon (UGA, UAA, UAG) is encountered, the translation process stops.

8 0
3 years ago
Which kind of solution is the concentration of solutes the same inside and outside of the cell?
Readme [11.4K]

Answer:

D. Dynamic equilibrium

Explanation:

Equilibrium is when the amount of solution outside the cell is equal to the amount inside. A dynamic equilibrium is when this homeostasis is kept through a continuing process. Therefore, since homeostasis is constantly being maintained the solution will be equal on both sides of the cell.

7 0
3 years ago
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