It’s nitrogen! Hope this helps
Prostaglandins are not stored in cells and are synthesized just before they are released, rapidly inactivated after their release and they are paracrine substances (Options b, c and e).
<h3>Whta are prostaglandins?</h3>
Prostaglandins are chemical substances that act as hormones by affecting surrounding cells in a tissue.
These substances (prostaglandins) are not secreted by specific glandular organs as other hormones.
Prostaglandins are substances that have fundamental functions for the normal functioning of the body.
Learn more about prostaglandins here:
brainly.com/question/8213520
B.
distance from pitcher's mound to home plate = 60 feet; time for baseball to go from pitcher's mound to home plate = 0.4 seconds
The answer is Artificial selection
