Females of various species shop around for males that _____
a. are nomadic
b. are highly selective
c. are silent and strong
d. make showy displays
e. have a large family
ANSWER: d
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What key words does the question contain and what do they mean?
What will be an ideal response?
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Figure 38.17
Use the figure above to answer the following question. At what partial pressure of oxygen do half the heme groups in human blood have bound oxygen?
A. 30 mm Hg B. 100 mm Hg C. 70 mm Hg D. 104 mm Hg E. 120 mm Hg
The two colors of light that drive most photosynthesis are ________ and ________
Fill in the blank(s) with correct word
You have discovered a previously unknown organism. It is multicellular, with a filamentous form, and absorbs food from its environment. Upon microscopic examination, you see that the cells have nuclei. How would you classify this organism?
What will be an ideal response?