Endocrine system: Many glands that control chemicals in the body Glands: an organ that makes or releases a chemical
Hormone: a chemical that is made by glands
Ec. has glands from the brain to the abdomen
Hypothalamus: part of your brain that links nervous systems plus the Endo. system
Controls sleep and hunger
Pituitary gland: pea-sized master gland
Controls growth

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.

step-by-step explanation:

a and d

the answer would be d

straight away you can eliminate a and c because not all books contain a scientific skill because some may be fiction. c is also wrong because it saids that the only way children can learn is through books which is incorrect.

b is also wrong because reading can be a scientific skill but not always, therefore it is wrong which leaves you with d, the correct answer since it said that it can children learn.

hope this ! : 3

i wish i could you, i have no idea how to answer this

step-by-step explanation: