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ladessa [460]
3 years ago
12

Which one of the following interspecies relationships has a negative effect on the abundance of both species?

Biology
1 answer:
Minchanka [31]3 years ago
8 0
<span> D. Competition</span>. Competition is a negative type of interaction among organism of the same (intraspecific) and different (interspecific) species. Organisms often compete when there is less resources in the environment. Because other organisms may be consuming or defending a resource, other organisms that need it need to compete, thus reducing the growth and survival of both competing organisms.
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where they execute important functions. The polypeptide chain of these proteins must cross the lipid bilayer. This presents a pr
spin [16.1K]

Answer:

In this case, it is likely that the polypeptide chain assumed an alpha helix configuration because the lipid bilayer did not have beta-barrel proteins.

Explanation:

A polypeptide chain is naturally polar, however, a lipid bilayer is naturally non-polar. This makes it difficult and even prevents the polypeptide chain from crossing a lipid bilayer, since the composition of these two elements does not allow them to mix. In that case, the polypeptide chain has two options to take to successfully cross the lipid bilayer.

The first option that the polypeptide chain has is to allow the creation of twisted beta sheets in the shape of a closed barrel in its structure. This only works if the lipid bilayer has beta barrel proteins in its composition to act as a transport channel for the polypeptide chain. However, few lipid layers have this protein.

Most likely, the polypeptide chain assumes an alpha helix conformation to cross lipid bilayers that do not have beta-barrel proteins. By assuming the beta conformation, the polypeptide chain reinforces the hydrogen bonds present in its composition, allowing it to cross the lipid bilayer without having its conformation and structure disassembled.

6 0
3 years ago
John has sudden attacks of intense fear in which he experiences palpitations, he feels dizzy, and he has trouble catching his br
sattari [20]

Answer:

panic disorder

Explanation:

The complete question is as follows:

John has sudden attacks of intense fear in which he experiences palpitations, he feels dizzy, and he has trouble catching his breath. During these attacks, he worries that he is going to die. From this description, it sounds like John has _____.

A. Schizophrenia

B. obsessive-compulsive disorder

C. panic disorder

D. generalized anxiety disorder

  • When a person experiences repeated panic attacks then the person is said to suffer from panic disorder.
  • During a panic attack the person experiences the following symptoms :
  1. palpitations
  2. sweating
  3. shaking
  4. numbness
  5. shortness of breath
  • Panic attacks may be caused due to different reasons such as past abuse, smoking, etc.
  • it is a form of extreme anxiety.
  • Since John is displaying the symptoms as stated above he is suffering from panic disorder.
5 0
3 years ago
The activity of a kinase called Src is regulated by phosphorylation. The kinase
Sladkaya [172]

Answer:

option A:The kinase is active only when Tyr527 is dephosphorylated and Tyr416 is phosphorylated.

Explanation:

6 0
3 years ago
Read the information below and decide if the information provided will classify this item as a cell.
Wewaii [24]

Answer:

True

Explanation:

It sharea all of the characteristics of a cell, including the ability to divide and make more copies of itself.

6 0
3 years ago
All of the following are found only in plant cells except
andriy [413]

Answer:

There is no answer to that.

Explanation:

  • Chlorophyll is located in the chloroplast, and it is a crucial component in green plants for photosynthesis.
  • Cells walls are present in plant cells only.
  • Large central vacuoles are part of plant cells, too.

None of the options are correct.

8 0
3 years ago
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