The answer to your question is indeed (d)
Answer:
B
Explanation
It is sunlight because producers need sunlight to grow. For example, an apple tree is a producer. It uses the sunlight to grow and create the fruit. The fruit is then consumed by a consumer (number 2 on the diagram).
Answer:
Haploid
Explanation:
Each daughter cell is haploid, because it has half the number of chromosomes as the original parent cell.
B cell activation occurs in the secondary lymphoid organs including the spleen and lymph nodes. After B cells mature in the bone marrow, they migrate through the blood to s<span>econdary lymphoid organs</span><span>, which receive a constant supply of antigen through circulating </span>lymph.
To further learn about this topic, see attached file.
