C. low humidity , when humidity is low it’s cooler outside which would be the best time for crystalline to form
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Answer:</h2>
The correct answer is option D which is that endocrine control can control melatonin.
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Explanation:</h2>
As melatonin is released from pineal gland which is a part of endocrine system.The endocrine system is a chemical messenger system which has glands, which secretes certain chemicals known as hormones.These hormone acts on different organs to control different metabolisms in body.So melatonin which is hormone can be controlled by the endocrine system.
Answer:
it would throw the ecosystem out of balance
Explanation:
the prey population may explode and destroy local wild life
