Question

match the words in the left column to the appropriate blanks in the sentences on the right. make certain each sentence is complete before submitting your answer.
show instructions
endocrine
immune
urinary
cardiovascular

1. : controls the body with chemical molecules called hormones.
2. : delivers oxygen and nutrients to the tissues.
3. : eliminates nitrogenous wastes from the body and regulates acid - base balance of the blood.
4. : a functional organ system which provides a means of protecting us from foreign invaders.

Explanation:

1. The endocrine system uses hormones (chemical messengers) to control body functions. So "Endocrine" matches the first sentence.
2. The cardiovascular system (heart and blood vessels) transports oxygen and nutrients to tissues. So "Cardiovascular" matches the second sentence.
3. The urinary system (kidneys, etc.) removes nitrogenous wastes (like urea) and regulates blood's acid - base balance. So "Urinary" matches the third sentence.
4. The immune system defends the body against foreign invaders (like bacteria, viruses). So "Immune" matches the fourth sentence.

Answer:

1. Endocrine
2. Cardiovascular
3. Urinary
4. Immune