Blood is carried away from the heart by
group of answer choices

capillaries

arteries

veins

afferent vessels

flag this question
question 21 pts
the left and right pulmonary veins carry blood to the
group of answer choices

intestines

heart

lungs

brain

flag this question
question 31 pts
relaxation of the ventricles is called
group of answer choices

depolarization

ventricular systole

ventricular diastole

hyperpolarization

flag this question
question 41 pts
cardiac muscle is similar to skeletal muscle in
group of answer choices

the presence of striations

the presence of intercalcated discs

the presence of a single nucleus

none of the above.

flag this question
question 51 pts
the muscular layer of blood vessels is the
group of answer choices

tunica externa

tunica media

tunica interna

tunica intima

arteries, lungs, ventricular diastole, the presence of intercalcuated discs, and tunics media.

it has to be understood that the sea water contains a huge amount of sodium and chlorine ions and if they enter the cell of the atlantic cod fish, the cell will shrivel and the fish will die. to avoid such a condition, the fish uses active transport for the purpose of removing the ions against the gradient.

explanation:

the atlantic cod is not a maritime osmoconformer. its native application of salts is less than that of the seawater it lives in. it is continually falling water from the gills to the ocean via osmosis.

countering that, the fish is going to be swallowing seawater. but since its internal collection of salts is lower than seawater, the fish will want to go free of excess salt, and since that's going upon a gradient, then active transport, requiring energy, must be used to pump out the salt. much marine fish use the organs to filter out the salt and these fish discharge very straight urine.

blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart. as the ventricle contracts, blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs where it is oxygenated.