Most scientists believe that the lateral buds farthest from the top of a tree are the least inhibited from sprouting because they
A) are shaded by the top of the tree.
B) receive the least light.
C) produce gibberellins.
D) receive the most cytokinins from the roots.
E) are the most affected by gravity.
D
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Cnidarians are able to capture prey with the aid of _____, harpoon-like organelles that are often tipped with neurotoxins
A. choanocytes B. nematocysts C. mesoglea D. polyps E. none of these
Each skeletal muscle cell constitutes a single
A. motor unit. B. muscle fiber. C. sarcolemma. D. myofibril. E. sarcomere.
Phospholipids are non-polar molecules
Indicate whether this statement is true or false.
An atom X contains 14 protons, 13 electrons, and 12 neutrons, and atom Y contains 14 protons, 14 electrons, and 12
neutrons. What can you conclude? a. Y is an ion but X is not. b. X and Y are both ions. c. X and Y both have filled valence shells. d. X and Y are isotopes of the same element. e. X and Y are atoms of the same element.