A circadian rhythm has a period that approximates a(n) 12-hour cycle. Indicate whether the statement is true or false
False - 24-hour
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Biotic potential
a. varies from one species to another. b. is controlled by the timing of the first reproduction. c. is controlled by the frequency of reproduction. d. is controlled by the number of offspring produced. e. is true of all of these
What specialized structure do crustaceans use to sense gravity?
a. antennae b. maxillae c. mandibles
d. statocysts e. swimmerets
You've stumbled upon a thick mat of moss in the woods. Upon closer inspection, you observe sporophytes emerging from the gametophytes. From your previous biology course, you know that the sporophyte is attached to a(n)
A) archegonium. B) antheridium. C) embryo sac. D) female cone. E) flower.
Competence means that a plant is ________, while determination means that a plant tissue ________. The acquisition of flowering competence is an example of a ________.
A. unresponsive to signals that trigger a fate change; is committed to a specific developmental fate; fate change B. in the process of responding to signals that trigger a fate change; was driven to adopt an abnormal developmental fate by transgene expression; flowerization C. capable of responding to signals that trigger a fate change; remains capable of adopting more than one possible developmental fate; phaseolus D. capable of responding to signals that trigger a fate change; is committed to a specific developmental fate; phase change