Answer:
The proper order is as follows-
1) A B cell differentiates from a lymphocyte stem cell, and the mature B cell expresses a specific type of B cell receptor on its cell membrane.
2) Gene expression is altered in the B cell, and the B cell begins to divide.
3) Several rounds of division occur, producing many B cells that all express the same B cell receptor.
4) The B cell's BCR (B cell receptor) binds to a foreign antigen with high specificity and high affinity.
5) Second messenger signaling is activated in the B cell.
The best description of predictable development of plant structure in an area over time is primary succession. The correct option is a.
<h3>What is succession?</h3>
Changes in the physical environment and the population of the species cause succession. There are two types of succession: primary and secondary succession.
Nudation, invasion, competition and coaction, reaction, and stabilization are the five stages of ecological succession. Autogenic succession is derived by biotic factor in an ecosystem.
Thus, the correct option is a. primary succession.
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Answer: A. 7 protons
Explanation: Just count the number of P's to get your neutrons.
