The answer is that they are somatic cells
Answer:
B) ATP is not produced during fermentation
Explanation:
Fermentation does not involve an electron transport system, and no ATP is made by the fermentation process directly.
<span>D. fossils
Hope im right!(: </span>
Hey!
Here is your sentence completed:
<em>Excess amino acids can be converted into fatty acids and stored as</em> triglycerides <em>in </em><span>adipose <em>tissue</em>. <em>This can contribute to weight gain.
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Hope this helps!
- Lindsey Frazier ♥</span>
Answer:
The correct answer is D) short-lived plasma cells that secrete antibodies for the antigen
Explanation:
Each B lymphocyte has an antigen receptor (BCR: B cell receptor), a surface immunoglobulin (IgM or IgD), that binds to specific domains of the antigen called antigenic determinants or epitopes. Only B lymphocytes with a high antibody affinity for the antigen, and which are capable of processing and presenting it, will be positively selected. In this contact between the two cells, an exchange of chemical signals takes place that leads to the activation, clonal proliferation and differentiation of B cells into two sister subclones: one of antibody-secreting plasma cells, and the other of memory primed B cells. Therefore, only these last positively selected B lymphocytes will survive, proliferate and differentiate into plasma cells, synthesizing and secreting antibodies of a single isotypic class, with a unique specificity and high affinity, improving the ability to adhere to the antigen and, thus , neutralize and destroy pathogens.
