1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Delicious77 [7]
3 years ago
14

Which of the purely endocrine organs contain modified neurons that produce and secrete neurohormones?

Biology
1 answer:
irga5000 [103]3 years ago
4 0

Answer:

D. Only the adrenal medullae

Explanation:

The adrenal medulla is the inner region of the adrenal gland. It consists of the modified sympathetic ganglion of the autonomic nervous system and develops from the same embryonic tissue as all other sympathetic ganglia. The cells of the adrenal medulla lack axons and are [present in the form of clusters around large blood vessels.

The chromaffin cells of adrenal medulla serve the endocrine function. These cells are innervated by sympathetic preganglionic neurons of the ANS. The adrenal medulla secretes epinephrine and norepinephrine which are called neurohormone as being secreted by neurons.

You might be interested in
With a BB homozygote, what is the chance of a gamete having the B allele? The b allele?
Katyanochek1 [597]

Answer:

With a BB homozygous the probability of a gamete having the B allele is 100%, and no chance of having the b allele.

Explanation:

For a given trait, B represents the dominant allele, while b is the recessive one. The fact that an individual has a homozygous (dominant) form for this trait means that their homologous chromosomes contain the B allele and, therefore, his gametes can only have the B allele.

In the case that the individual was heterozygous, the chances of having a gamete with B or b would be 50:50.

Learn more:

Homologous chromosomes with heterozygous or homozygous alleles brainly.com/question/210889

5 0
3 years ago
HELP I NEED THE ANSWER NOWWWWWW
Crazy boy [7]
Your answer is going to be D
8 0
3 years ago
7. In some chickens, the gene for feather color is controlled by codominance. The allele for black is B and the allele for white
kondor19780726 [428]

Answer:

See the answer below

Explanation:

<em>Genotype is the genetic composition of organisms and a gene is made up of two alleles.</em>

a) Since the allele for black is B, <u>the genotype for black chickens would be BB. </u>

b) Since the allele for white is W, <u>the genotype for white chickens would be WW.</u>

c) Since erminette color is heterozygous,<u> the genotype would be BW.</u>

d) Two erminette were crossed:

         BW    x    BW

      BB BW BW WW

i. <em>Probability of having black chick (BB) </em>= 1/4

ii. <em>Probability of having a white chick (WW)</em> = 1/4

iii. <em>Probability of having erminette chicken (BW)</em> = 1/2

5 0
3 years ago
t elevatUsing species C as a reference, you find that there are more genetic differences between species A and species C than be
Julli [10]

Answer:

Speciation was allopatric or peripatric, but would depend on the number of individuals that dispersed from the original populations.

Explanation:

  • There are two types of speciation: allopatric and peripatric.
  • Allopatric speciation occurs when the species of same population gets isolated that results in lack of gene flow.
  • From the isolated population, new species are formed then it is known as the peripatric speciation.
  • All these isolation of populations and formation of new species depends upon the initial or original group of species that was dispersed.
5 0
3 years ago
Which of these products is formed during the metabolic reactions of cellular respiration
earnstyle [38]
The correct answer is D.
3 0
3 years ago
Read 2 more answers
Other questions:
  • Which anole species seems to have a brighter dewlap? (remember that 1 corresponds to least bright and 6 to brightest.)?
    7·1 answer
  • Peyer's patches are found in the distal portion of the ________.
    5·1 answer
  • Which of the following is true about the properties of aqueous solutions?
    5·1 answer
  • The final product of the calvin-benson cycle used to produce glucose is _____.
    9·2 answers
  • Describe the characteristics of the water at the mountain source: speed temperature oxygen level and nutrient level
    12·1 answer
  • What is an advantage of using transgenic bacteria to produce human proteins?
    10·1 answer
  • _____ is when one allele completely masks another.
    11·2 answers
  • A 22-year old male college student was presented at the ESU health clinic. He looked tired and pale. He presented because of hig
    6·1 answer
  • What are the minor functions of the cardiovascular system
    15·1 answer
  • What is at the center of a red blood cell?<br> Plasma<br> Iron <br> Copper <br> Carbon <br> dioxide
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!