Bacteria living in a freshwater stream that are transferred to ocean water would
A. be in a hypotonic solution.
B. be in an isotonic solution.
C. become dehydrated due to the loss of water.
D. gain water.
Answer: C
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What are leaf veins?
a. vascular bundles of leaves b. photosynthetic cells of leaves c. sclerenchyma cells of leaves d. palisade mesophyll of leaves e. spongy mesophyll of leaves
Smooth muscle is
a. involuntary and nonstriated. b. responsible for movement of the skeleton. c. involved in contraction of the heart. d. connected to bones by tendons. e. involuntary, nonstriated, and involved in contraction of the heart.
Which of the following could be present in the cytoplasm of a prokaryotic cell?
A. Nucleus B. Ribosomes C. A circular chromosome D. Answers A and B are correct E. Answers A and C are correct F. Answers B and C are correct G. All of the above
Sympatric speciation often occurs in animals through polyploidy
Indicate whether the statement is true or false.