A fat molecule is broken down by the bodies metabolism over time to create a estrogen molecule
The exocrine gland indicated by an arrow is the liver.
<h3>What is an
exocrine gland?</h3>
A gland that makes substances such as sweat, tears, saliva, milk, and digestive juices, and removes them through a duct or opening to a body surface.
Examples of exocrine glands include sweat glands, lacrimal glands, salivary glands, mammary glands, and digestive glands in the stomach, pancreas, and intestines.
Thus, the exocrine gland indicated by an arrow is the liver.
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The gases being released from the ground
Those would be enzymes I believe. They are the power house of the membrane and lower the amount of activation energy needed.
Based on the description of events, being that the lizard population appears to increase as soon as the snake population decreases, it appears that the snakes prey on the lizards. This suggests that the snake is a keystone species. A keystone species is one that has a dramatic effect on maintaining the balance of an ecosystem. As soon as the snake population decreases, major changes occur to the ecosystem, such as the lizard population increasing.
Therefore, the answer is D: <span>The snake is a keystone species in the ecosystem.</span>