Ascientist who first sounded the alarm about the growth of the human population and the ability of the earth to handle a large population of humans was?

Thomas Malthus

Explanation:

Thomas Robert Malthus, an English cleric, and scholar, published this theory in his 1798 writings, An Essay on the Principle of Population. He believed that through preventative checks and positive checks, the population would be controlled to balance the food supply with the population level.

since you have not provided the options here i   am going to give you general overview about hormone.hormone are actually the part of endocrine system in our body and produced by the endocrine glands. the hormones act like a chemical messenger   within human body. once produce by the glands they   travel through the blood stream and reach at specific or target tissue and organs   which result in control of our body function. the hormones are specific in their work and work on only the targeted tissue or organ   . with the of hormone endocrine system regulate the heart rate , metabolism, our mood and   growth as well as the development and even the sleeping cycle etc. they actually are the messenger for body cell and organs .

answer 2 is the right one. jim should measure his snack to make sure he is using the right serving size.