The letter “A” from above represents which of the
following?
a. the excretory pore
b. malpighian tubules where uric acid is taken up
from blood and excreted
c. sexual reproductive organ
d. cilia which flick to throw interstitial fluid out of
the organism
e. none of these
Answer: b
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Indicate whether the statement is true or false.
What was the purpose of repeatedly drying, freezing, and thawing some of the fungi?
A. to kill the fungi B. to make the fungus more susceptible to the virus C. to prepare the fungi to infect the panic grass D. to remove the virus E. to prepare the fungi for growth at 65°C
Systolic pressure measures the force exerted by blood against the wall of a blood vessel during ventricular contraction.
a. true b. false
Which statement is true of deuterostomes?
A. The second opening into the embryo becomes the anus. B. They have two tissue layers. C. The second opening into the embryo becomes the mouth. D. The first opening into the embryo becomes the mouth. E. They are typically radially symmetrical.