If after several generations all males have 12-point antlers, this development will have been due to:
A) founder effect. B) stabilizing selection.
C) disruptive selection. D) directional selection.
Answer: B
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A patient with advanced colon cancer just had most of his large intestine removed. What process will be most reduced in this patient as compared to a healthy person?
A. absorption of fatty acids and glycerol into lymph capillaries B. absorption of water into the blood C. detoxification of harmful substances D. digestion of cellulose E. absorption of sugars and amino acids into the blood Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you know about the function of the large intestine? What other information is related to the question? Choose Answer · Given what you now know, what information is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
In which of the situations below would a plant be at greatest risk for the formation of air bubbles in the xylem stream?
A. during the night, when transpiration is low B. during the afternoon, when transpiration is highest C. in the early morning, with cooler temperatures and calm winds D. in the day during a drought E. the risk is the same at any time of day
Which animal lacks symmetry, has no embryonic tissues, and has intracellular digestion?
a. a cnidarian b. a flatworm c. a sponge d. an annelid e. a planaria
The secondary plant cell walls contain large amounts of lignin, which is a polymer of amino acids. Indicate whether the statement is true or false