In this experiment, the cost of thermoregulation was a risk of predation.
a. true
b. false
Answer: b. false
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Active transport would be LEAST important in the normal functioning of which of the following plant tissue types?
A) leaf transfer cells B) stem tracheids C) root endodermal cells D) leaf mesophyll cells E) root sieve-tube elements
Which genetic mechanism is most likely responsible for the evolutionary origin of new and complex plant structures,
such as flowers?
a. gene duplication b. asexual reproduction c. genes coding for flower development d. mutations in noncoding regions e. gene splicing
Caenorhabditis elegans is a favorite for genetic
studies because of all of the following EXCEPT a. it has the same tissue types as larger animals. b. it is transparent. c. it has only 959 cells. d. it reproduces quickly. e. they can be cut in half and used in experiments.
Without the proper amount of water in your diet,
A. electrolytes can become imbalanced. B. dehydration will result. C. the blood is thicker. D. All of these are possible.