C. Energy that is the correct answer
The different sizes of animals are related to the amount of food available in these environments.
<h3>How does altitude influence species richness?</h3>
The study in mountains with increasing altitude and increased species richness at heights of evidenced, followed by a reduction in richness with increasing altitude.
With this information, we can conclude that the different size of the lizards is explained by the amount of food available in the place where it is inserted.
Learn more about altitude in brainly.com/question/1594187
Answer:
a. Glucagon is released by the beta cells of the pancreatic islets of Langerhans.
Explanation:
When the body is fasting, the pancreas releases glucagon so that your body can produce glucose. Glucagon is a protein hormone made and secreted by alpha cells from pancreatic islets (or islets of Langerhans).
The islets of Langerhans are a special group of cells in the pancreas that produce not only glucagon, but also insulin. These substances act as important regulators of sugar metabolism.
