<span>X chromosomes is found in female cells and</span><span><span> males produce sperm with an X or a Y chromosome.</span> </span>
Answer: D) alpha: catabolism
Explanation:
Glycogen is the storage form of carbohydrates in animals. The major sites of storage are liver and muscle.
Glucagon is a polypeptide hormone, it is secreted by the alpha cells of the pancreas. Low blood glucose causes glucagon secretion. When blood glucose level falls, liver glycogen is broken and help to maintain blood glucose level.
Glucagon stimulates the enzyme glycogen phospholylase which breaks down glycogen into glucose units.
This answer would be true.
The answer is nitrogen-fixing bacteria.
<span>Plants
are not able to directly use atmospheric nitrogen. It must be converted into different
form through a nitrogen cycle. In the process of nitrogen
fixation, nitrogen fixing bacteria converts atmospheric nitrogen into
ammonium. In the process of assimilation, plants incorporate
ammonium into proteins.</span>
Some legumes have a symbiotic relationship with bacteria that
live in their root system. These bacteria are called Rhizobia and have
the ability of nitrogen-fixation.
