The single most abundant chemical substance of the body, accounting for 60% to 80% of body weight, is ________.
A) oxygen
B) protein
C) water
D) hydrogen
C) water
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Most primates are ________, meaning they live in trees
A) bipedal B) prehensile C) troglodytic D) arboreal E) cursorial
Which blood vessels handle the highest blood pressure?
A) pulmonary arteries B) systemic arteries C) systemic veins D) pulmonary veins
Which of the following hormones promotes sodium ion (and water) reabsorption by the kidney in order to increase blood pressure and blood volume?
A) glucagon B) thyroxine C) epinephrine D) aldosterone E) antidiuretic hormone
Answer the following statements true (T) or false (F)
1. An atom with 15 protons would have an atomic mass of 15. 2. An atom with 15 protons would have an atomic number of 15. 3. An atom with 15 protons and 15 electrons would have an atomic mass of 30. 4. An atom with 15 protons and 15 neutrons would have an atomic mass of 30. 5. Neutrons have no electrical charge.