The extraembryonic membrane that forms a fluid-filled sac is the
A) yolk sac.
B) amnion.
C) allantois.
D) chorion.
E) decidua.
B
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What tube transports urine from the urinary bladder to the outside of the body?
A) ureter B) distal convoluted tubule C) proximal convoluted tubule D) urethra E) collecting duct
The lens of the eye
a. has convex surfaces. b. is stronger when it is flatter. c. contributes most extensively to the eye's total refractive ability. d. two of these answers. e. all of these answers.
Which of these would NOT be a benefit of suturing large wounds together?
A) more rapid healing B) less chance of infection C) more wound contracture D) less scar tissue formed E) less granulation tissue formed
When a person is angry or frightened, the __________ glands become active
a. pineal b. adrenal c. pituatary d. thyroid