Answer for 100 points and brainliest

24.
which component of blood is made of 90 percent water?

platelets

red blood cells

white blood cells

plasma

25.
use the diagram to answer the question.

what is the function of organ a?

it breaks down fat.

it stores bile.

it produces enzymes.

it absorbs nutrients.

26.
how many loops does the human circulatory system contain?

two

one

three

four

27.
what is the function of lymph nodes?

to transfer oxygen

to make new lymph

to return lymph to the bloodstream

to trap disease-causing bacteria

28.
the body breaks down food into nutrient molecules during

peristalsis

digestion

salivation

absorption

29.
which describes arteries?

carry blood from the heart to the body

exchange substances between blood and cells

carry blood from the body to the heart

exchange oxygen and carbon dioxide in the lungs

30.
use the diagram to answer the question.

which describes organ d?

the gallbladder, which stores bile

the small intestine, which uses bile

the liver, which produces bile

the pancreas, which produces enzymes

31.
hydrochloric acid work.

mucus

water

pepsin

saliva

32.
the cardiovascular system consists of

lymph, the heart, and blood vessels

blood vessels, blood, and lymph

blood, lymph, and the heart

the heart, blood vessels, and blood

33.
if your pulse rate increases, your heart is beating

with less pressure than before

faster than before

slower than before

at the same rate as before

34.
use the diagram to answer the question.

what is structure g?

liver

stomach

rectum

pancreas

35.
oxygen-rich blood flows from before the aorta carries it to the body.

the left ventricle to the left atrium

the right ventricle to the right atrium

the right atrium to the right ventricle

the left atrium to the left ventricle

36.
a pacemaker adjusts the heart rate to correspond to the body’s

creation of waste products

ability to fight disease

need for oxygen

need for carbon dioxide

37.
the amount of energy required to raise the temperature of one gram of water by one celsius degree is called a

vitamin

carbohydrate

protein

calorie

38.
use the diagram to answer the question.

through which organ is food absorbed?

b

c

a

d

39.
capillary walls have of cells.

two layers

three layers

one layer

four layers

40.
what occurs as blood moves away from the heart?

blood pressure decreases

blood pressure increases

pulse increases

pulse decreases