Well biotic factors are living things basically so anything living would apply. Mold could be an answer or lettuce in a fridge. Hope this helped.
How does the immune system
produce memory cells for antigens?
This is the BEST research
question for students to ask if they are conducting research on antibodies
because t<span>he answer to this question must tell about
production of B-cells, recognition of antigen, T-helper cells, colony formation,
and phagocytosis of foreign antigen, T-killer cells, and all other details which
is possible.</span>
Answer:
False.
Explanation:
Among the organic macromolecules , enzymes belong in the category of proteins. Proteins are distinct from carbohydrates, nucleic acids and lipids in that a protein is made of amino acids. Amino acids link together into a chain that can fold into a three-dimensional shape.
B because it takes in nutrients through endocytosis so the membrane opens up and envelopes the nutrients
The fluid in which organelles of the cell reside. This water can be used to assist in chemical reactions within the cell.
