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Lerok [7]
3 years ago
10

Nitric oxide is a paracrine signal molecule because NO

Biology
1 answer:
hichkok12 [17]3 years ago
8 0

Answer:

C. is unstable, with a short half life

Explanation:

Paracrine hormones are the hormones that act on neighboring cells only. These hormones or chemicals are largely unstable and have a brief life as do not visit the distantly placed target cells. For instance, somatostatin is secreted by D cells of the pancreas. It acts in a paracrine manner and inhibits the discharge of hormones from the neighboring beta and alpha cell.

Likewise, one of the functions of unstable NO gas is to serve as a vasodilator. It is released by epithelium cells and serves to dilate arterioles and relax precapillary sphincters. Then it is degraded.

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In a small, isolated population of piranhas, one individual is born with a synonymous mutation in a gene that codes for the beta
IrinaVladis [17]

Answer:

The correct answer is: Genetic Drift.

Explanation:

  • In any population of any species having two or more alleles encoding for different genes, the frequency of occurrence of each allele among the individuals of a population can vary.
  • The frequency of one allele may be far more or far less than the frequency of other alleles.
  • The frequency of any particular allele is dependent on factors like random mating among individuals as well as natural selection, that tends to increase the frequency of those alleles which provide a survival advantage to the individual in a given environment.
  • Genetic drift can be defined as a phenomenon due to which the frequency of an allele encoding for a particular gene undergoes drastic change (increase or decrease) in a population due to random mating as well as natural selection.
  • In the given statement, one individual of an isolated population of piranhas underwent synonymous mutation in the beta-globin encoding gene.
  • A synonymous mutation can be defined as such a change in the nucleotide sequence of a gene that does not affect the sequence, structure or function of the protein encoded by it.
  • The increase in the frequency of the mutated form of the beta-globin gene after five generations to 5% indicates that due to the impact of random mating or natural selection or both, this has happened.
6 0
3 years ago
Which of these is the lowest sub group: <br> A: kingdom <br> B: order <br> C: genus <br> D: species
dexar [7]

<u>In order, the sub groups go:</u>

<em>life</em>


<em>domain</em>


<em>kingdom</em>


<em>phylum  </em>

<em>class</em>


<em>order</em>


<em>family</em>


<em>genus</em>


<em>species</em>


<em>Therefore, D (Species), is your answer.</em>


3 0
2 years ago
Read 2 more answers
If anyone could complete this timeline in order, left to right, that'd be much appreciated :)
Lady_Fox [76]

Explanation:

if anyone could complete this timeline in order, left to right, that'd be much appreciated :)

hope it is helpful to you

6 0
2 years ago
Read 2 more answers
A generalist is a species that a. Occupies a large habitat range b. Occupies a variety of ecological niches c. Can't reproduce u
deff fn [24]

Answer: A generalist is a species that occupies a variety of ecology niches.

Explanation:

4 0
3 years ago
If the population of Shanghai increases to 30 billion people, how much land would its people need if the population density is 3
nadezda [96]

784109 People per sq. mi land would its people need if the population density is 3,826 people/km2.

<h3>What is population density?</h3>

The density of individuals within a species in a given geographic location is referred to as population density. Data on population density can be used to calculate demographics and examine interactions with ecosystems, human health, and infrastructure.

The population density equation below can be used to calculate the population density of a piece of land:

        Population Density = Population/ Area

The residential density is important in determining the people's thinking and culture. Engineers find it vital to forecast population growth in order to develop infrastructure that can support a large population. It is practically impossible to develop a perfect 3D model of any structure that allows the largest number of people to live without this understanding.

For more information regarding population density, visit:

brainly.com/question/109266

#SPJ1

7 0
1 year ago
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