Where are apical meristems located?
A) Scattered throughout the plant
B) In clusters in the parenchyma
C) In cylinders along the side of the root
D) At the tips of roots, shoots, and branches
E) Between the xylem and the phloem
D
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The simplest technique for isolating bacteria in growth media is referred to as the
A. pour-plate method. B. streak-plate method. C. serial dilution method. D. MPN method.
If you yell "boo" as you jump from behind a door and scare your friend, your friend turns pale because what constricts?
A. veins B. capillaries C. venules D. arterioles E. arteries
Which lineage shared several derived traits—such as the shapes and positions of bones in their appendages—with early tetrapods, and apparently gave rise to the tetrapods?
a. osteolepiforms b. acanthodians c. ostracoderms d. conodonts
Which extraembryonic membrane lies immediately beneath the shell of a reptile embryo?
A) Allantois B) Chorion C) Amnion D) Yolk sac E) Placenta