Down syndrome is an example of a __________ condition
a. monosomic
b. disomic
c. trisomic
d. polyploid
e. transgenic
C
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Resistance to blood flow depends mainly on
a. the diastolic pressure. b. elastic tissue of the vessels. c. blood vessel diameter. d. valves in the vessels. e. ultrafiltration pressure in the capillaries.
Which type of radiation has enough energy to remove electrons from atoms?
a. x-rays b. magnets c. radio waves d. visible light e. microwaves
Which elements are responsible for the greater part of plant wet weight?
a. carbon, nitrogen, oxygen b. carbon, nitrogen, phosphorus c. carbon, oxygen, hydrogen d. carbon, hydrogen, potassium e. carbon, nitrogen, potassium
The seminal vesicles, prostate gland, and bulbourethral glands produce materials that
A. activate sperm. B. make semen. C. provide nourishment for sperm. D. All of the above are correct.