Exam 26: Internal Organization and Homeostasis

Individual cells that are deeply embedded in a large animal are surrounded by ________,which provides nutrients,delivers hormones,and carries away wastes.

Blood is a connective tissue because it

Most marine animals and all land animals are ________ because they maintain internal salt and water levels that are NOT the same as those of their surroundings.

Metabolic heat is NOT generated by

For a vertebrate animal to obtain and use energy,

Shivering and goose bumps are ways of producing ________.

Heatstroke results primarily from a loss of ________ cooling.

After about an hour of basking in the sun,the body temperature of the marine iguana reaches 37°C and it dives into the water to feed.In the water,its body temperature rapidly drops and it must return to the rocks to warm up.This is an example of

Secretion and ________ take place in the U-shaped kidney tubule.

A breeze cools a hot,dry surface by

A molecule of ammonia leaving a cell would first move into

Because the brain controls all body functions,the ________ and ________ systems are the only systems that communicate with all other body systems.

An organism that generates enough metabolic heat to contribute in an important way to its heat gain is known as a(n)

The basic functioning unit of the kidney is the ________.

Marine fish must use energy to maintain their body fluid balance,because

Which of the following statements about homeostasis is FALSE?

An animal that does NOT maintain a relatively constant core temperature is a(n)________.

Why do animals that live in cold climates have thick fur coats?

Negative feedback

The interface between an organism and its environment,known as ________ tissue,regulates the amount of water,heat,and other substances that are exchanged with the external environment.