The function of the epiglottis is to
A) keep the bronchi from collapsing.
B) produce surfactant.
C) assist the vocal cords in sound production.
D) facilitate gas exchange in the lungs.
E) prevent food from entering the larynx.
E
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The reproductive organ in males that produces sperm and testosterone for reproduction. _____
A) Endometrium
B) Testis
C) Cervix
D) Uterus
E) Oviduct
F) Ovaries
G) Vagina
H) Seminal vesicle
I) Penis
J) Prostate gland
K) Vas deferens
L) Glans penis
What is a reflex action? Make a labeled sketch of the spinal cord and related structures that describes the functioning
of the withdrawal reflex. What will be an ideal response?
Small, plate-like structures found on fish
A) operculate B) scales C) mucosal caps D) plaques
Which of the following correctly describes the effect parasites have on their host's population size and on the host itself?
A) Parasites have a density-dependent effect, but they do not affect host death rates. B) Parasites have a density-dependent effect, but they do not usually kill their hosts. C) Parasites have a density-independent effect, and they usually kill their hosts. D) Parasites have a density-independent effect, but they do not usually kill their hosts. E) Parasites have a density-dependent effect, and they usually kill their hosts.