D. Enzymes and antibodies
Answer:
The circulatory system, also known as the cardiovascular system, is a simple loop which starts, and ends, with your heart. It is a closed system, meaning blood does not enter or leave the system during its journey from your heart to your body and back again.
Explanation:
From the video we can infer that a group of friends went on an excursion to a zoo and saw the treatment of different animals present.
<h3>What is a Zoo?</h3>
This is a place where animals are kept for public display or for conservation purposes.
The debate between them was about the revolutionary concept of how animal treatment affects their choice selection in the zoo.
The element as to how zoos are changing that also serve the purpose of offering animals more choice include their habitat and diet.
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Increases the rate of reaction
Answer:
the the climax of the night