answer.
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
Trava [24]
1 year ago
7

Helper t-lymphocytes secrete ________ to stimulate the proliferation of b-lymphocytes.

Biology
1 answer:
zysi [14]1 year ago
7 0
There are choices for this question namely:

<span>A) Antigens
<span>B) Antibodies
</span><span>C) Cytokines
</span><span>D) Agglutinins
</span><span>E) A<span>llergens

The correct answer is "cytokines". These helper T cells secrete cytokines that will stimulate the B cells into differentiating to plasma cells. These plasma cells will then produce antibodies to combat the offending agent depending on the antigen presented.</span></span></span>
You might be interested in
How are histone modification enzymes (such as HATs) and chromatin remodeling complexes recruited to unmodified chromatin, and ho
kiruha [24]

Answer:

A histone modification mechanism proliferate through a process that includes post translational modification procedure. The methylation, acetylation as well as ubiquitylation are one of the main modifiers that help in activation of silent genes and ultimately these covalently bonded histone modifiers help in regulating chromatin. The PTM has a main role in altering histone structure by these modifier's recruitment....

3 0
2 years ago
Phosphofructokinase is an allosteric enzyme that catalyzes the conversion of fructose 6-phosphate to fructose 1,6-bisphosphate,
zhenek [66]
I believe in the presence of oxygen, an increase in the amount of ATP in a cell would be expected to inhibit the enzyme and therefore, slow the rates of glycolysis and the citric acid cycle. Phosphofructokinase is and enzyme that phosphorylates fructose 6 phosphate in glycolysis. It is an important control enzyme in the regulation of cellular respiration. It is inhibited by ATP and is an allosteric enzyme. 
3 0
2 years ago
Twin boys both have a gene associated with aggressive tendencies. what is the most likely outcome to be observed in their behavi
Oliga [24]
It is not possible to determine the twins'  behaviors based on having this single gene  
5 0
1 year ago
Please help not sure on this one thank you
Jobisdone [24]
C) be attracted to one another
3 0
2 years ago
The gray matter in the spinal cord is located in the ____________ , and its shape resembles a letter H, or a butterfly. The cell
mariarad [96]

Answer:

The gray matter in the spinal cord is located in the <u><em>grey column</em></u> , and its shape resembles a letter H, or a butterfly. The cell bodies of somatic motor neurons are primarily housed in the <u><em>ventral or anterior</em></u> horns, which innervate skeletal muscle.

Explanation:

The grey matter is a component of the central nervous system that contains neuronal and glial cells and it can be found in the brain, brainstem and <em>spinal cord, in this last one, is found in the grey column, a mass of grey matter shaped in H form.</em>

In this column the grey matter is divided into four columns (as you can see in the image I added):

  • The dorsal or posterior horn: contains somatosensorial neurons
  • <em> The ventral or anterior horn: contains somatic efferent motor neurons (they exit the spinal cord to innervate skeletal muscle) </em>
  • The intermediate column: contains neurons to innervate visceral organs
  • The lateral horn: same as the intermediate column

I hope you find this information useful and interesting! Good luck!

6 0
1 year ago
Other questions:
  • If natural selection has no foresight, how can it explain features that seem to prepare organisms for future events? for example
    11·1 answer
  • Which theory suggested that cities grow in a circular fashion?
    5·2 answers
  • Match the creature to its distribution pattern.
    14·2 answers
  • Cardueline finches can be found in many areas of the world, including North America and Asia. Hawaiian honeycreepers, which are
    13·2 answers
  • The nuclear membrane's role in the regulation of gene expression involves _____. The nuclear membrane's role in the regulation o
    15·1 answer
  • A geneticist crossed pure breeding black mice with pure breeding brown mice. All the 992 mice in F1 generation had black coats.
    13·1 answer
  • In cell i10, create a formula that uses the if function to determine if a packaged clothing set is overweight by checking if the
    13·1 answer
  • List three questions about human honey guide symbiosis that could be answered with further research
    9·1 answer
  • Which is one type of evidence that geologists usually study? location of Earth in outer space waves that move through Earth inte
    11·2 answers
  • Which of the following is an example of adaptation? A rabbit population in which all of the members change fur color from brown
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!