Question

Which organ systems help deliver oxygen to body cells?
respiratory and excretory systems?
muscular and immune systems?
respiratory and circulatory systems?
endocrine and lymphatic systems?

Answer 1

respiratory and circulatory systems.

Answer 2

the body maintains hemostasis through_
blastulas
feedback inhibition
pulmonary circulation
reabsorption

Answer 3

Feedback inhibition because for example if your cold, you shiver to get to normal body temperature, so this is what feedback inhibition is.

Answer 4

thank you. I have a couple more questions, but I don't know how to copy and paste them it wont let me so im typing them all out I guess

Answer 5

that's fine.

Answer 6

Which of the following is a correct list of the three types of energy providing nutrients?
water, proteins, and carbohydrates
minerals, vitamins, and fats
carbohydrates, fats, and proteins
water, minerals, and vitamins

Answer 7

Carbohydrates and fats, these are used up first, very logical if you think about it. After there is no Carbs or fats to use as energy the amino acids (From proteins) are used up.


Short summary: Option 3

Answer 8

The pancreas is a gland that produces hormones to regulate blood sugar levels. It also serves two important functions in the process of digestion. One is the production of enzymes the break down lipids, nucleic acids, carbohydrates, and proteins. What is the other?
It produces bile, a fluid containing lipids and salts, which dissolves and disperses fat droplets.
it contains villi and microvilli, folds and projections that drastically increase the surface area through which nutrients are absorbed.
it produces sodium bicarbonate, a base that reduces the acidity so the digestive enzymes can function properly.
it removes excess water from the undigested material left at the end of the digestive process.

Answer 9

which of the following groups of organs all remove metabolic wastes from the human body?
esophagus, gall bladder, and pancreas
brain, spinal cord, and salivary glands
skin, bones, and muscles
skin, lungs and kidneys

Answer 10

Esophagus - Gall bladder - pancreas

Answer 11

last one!
how do the kidneys help maintain constant water levels in the body?
by removing wastes from the blood
by causing people to produce more swear during hot weather
by reabsorbing water in nephrons
by storing water in the urinary bladder