Prokaryotes undergo a process that produces cells that are identical. This process is called
A. conjugation.
B. mitosis.
C. meiosis.
D. syngamy.
E. binary fission.
Answer: E
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Which of the following statements about activation energy is not true?
A. The activation energy of a reaction is lowered by enzymes. B. The activation energy is the difference between the energy level of the ground state and the transition state. C. The activation energy is the difference between the free energy of the product of the catalyzed and uncatalyzed reaction. D. The activation energy represents an energy barrier to the transition from substrate to product. E. Activation energy is related to the rate of the reaction.
What is the name of the meristematic tissue that gives rise to future vascular tissue?
A. procambium B. cork cambium C. ground meristem D. dermal tissue E. protoderm
Fish and crustaceans are similar in that both use _____________ for gas exchange.
A. tracheal tubes B. gills C. the walls of the mantle cavity D. the moist surface of their skin E. lungs
What evolutionary advantage is provided by sexual reproduction?
a. increased genetic diversity b. making clones c. making diploidy possible d. making polyploidy possible e. being able to work with chromosomes