Ctenophores exhibit:a
bilateral symmetry.
b. spherical symmetry.
c. linear symmetry.
d. radial symmetry.
e. circular symmetry.
D
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Which of the following is/are characteristic of ALL cellular organisms?
A) communication B) evolution C) motility D) communication, evolution, and motility
The functional unit of the kidney is the
(a) renal pelvis. (b) ureter. (c) cortex. (d) nephron.
Arrange the following going from the earliest to the most recent according to the time they evolved
from a common ancestor. 1) New World monkeys 2) Orangutans 3) Humans 4) Gibbons 5) Gorillas a. 1, 4, 2, 5, 3 b. 1, 2, 4, 3, 5 c. 2, 1, 4, 5, 3 d. 2, 5, 4, 1, 3 e. 3, 5, 2, 4, 1
Which of the following is true of healthy G1 cells?
a) The p53 protein is found at very high levels. b) The probability of apoptosis in these cells is very high. c) The p53 protein is found at very low levels.