Answer: d. insulin
<span>Actually, there are two hormones secreted by islet cells within the pancreas: insulin and the glucagon. However, their secretions in response to blood sugar levels, are in opposite fashion! </span>
<span>Insulin is normally secreted by the beta cells of the pancreas while glucagon by the alpha cells. The </span><span>amount of insulin secreted into the blood increases as the blood glucose rises. In the same way, as the blood glucose falls, the amount of insulin secreted by the pancreas goes down.</span>
In glucagon, it is opposite. If blood glucose is high, then there is no glucagon secreted. Therefore, the answer is insulin.
Answer:Structure. Norovirus capsid has a curvilinear shape (diameter 23-37 nm) and an amorphous structure, with no outer envelope. Norovirus has linear unfractionated RNA; The major structural proteins of the virus (VP1 and VP2) are monomeric and bind to the surface of host (infected) cells.
Explanation:
Your correct answer would be C. plant cells have mitochondria, a very important part of the cell, which means the plant cell needs structure to carry mitochondria throughout the cell to keep the flow of the process of photosynthesis, which brings energy to the plant.
The first organic compounds may have been nucleotides and make up nucleotides. Nucleotides bond together to form RNA or DNA. RNA and DNA make up genetic codes. So all of these make up each other in a sort of chain or order.
