How do auxin and cytokinin interact to affect the shape and growth of a plant?
What will be an ideal response?
Auxin encourages the development of the main stem and inhibits lateral bud growth. Cytokinin encourages lateral bud growth. The interactions between the two determine the branching patterns and shape of the plant.
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Which of the following statements about action potentials is NOT true?
a. They are considered all-or-none b. Extreme excitation will result in a very large action potential c. They move via saltatory conduction in myelinated axons d. They are generated at the axon hillock
Historically, fishermen kept larger adult fish and left smaller adult fish. Over time, the average size of the fish would
A. increase by genetic drift. B. decrease by genetic drift. C. remain unchanged. D. decrease by natural selection. E. increase by natural selection.
The Ethical, Legal, and Social Issues program seeks to deal with issues related to privacy, fairness, discrimination, and
reproductive decisions that emerge due to the availability of genomic information. a. True b. False
Which of the following is an advantage of sexual reproduction over asexual reproduction?
a. Sexual reproduction mixes genetic information into a new combination in the next generation. b. Sexual reproduction ensures a greater number of progeny. c. Sexual reproduction keeps the number of chromosomes constant more effectively. d. Sexual reproduction