Once the lymph<span> is pulled into the </span>lymph<span> vessels it </span>flows<span> through the nodes and </span>lymph<span> organs, where the </span>lymph<span> is filtered and enhanced. </span>
D. Wood
Wood is a natural resource whereas everything else isn’t.
Answer:
Glucagon is secreted
Explanation:
Glucagon is an hormone secreted by the alpha cells of the pancreatic islets. It is secreted when the blood glucose is low, when the blood glucose is high, glucagon is not secreted.
Glucagon affects the liver and some other cells but has more effect on the liver.
It allows for the release of glucose stored up in the liver cells into the blood stream to increase blood glucose.
The correct option is D. There are four different nitrogenous bases in DNA molecules; these bases are joined together by different forces including hydrogen bonds. In DNA molecules, there are two hydrogen bonds between adenine and thymine while there are three hydrogen bonds between cytosine and guanine. Thus, the hydrogen bonds between cytosine and guanine is the stronger.
