Pollen contains that produce .
A. gametophytes; sperm
B. sporophytes; sperm
C. gametophytes; spores
D. sperm; spores
E. sporophytes; spores
A. gametophytes; sperm
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The ____ of the plant refers to the mechanisms by which the plant body functions in its environment
a. morphology b. ecology c. anatomy d. distribution e. physiology
If you observed two female redback spiders, one having 10 offspring and the other 50, what could explain the difference?
A. The female with more offspring ate her mate and was therefore better nourished. B. The female with fewer offspring has a virus. C. The female with more offspring has more estrogen. D. The female with fewer offspring received more sperm from fewer males. E. The female with more offspring is a better hunter.
What organism is the main reservoir and host for Toxoplasma gondii?
A. Mosquito B. Mouse C. Cat D. Raccoon E. Dog
You are hiking with a friend and reach the peak of a mountain after a long climb. On your climb upward, you had a clear trail with a little grass and small shrubs along the way. But looking down the other side, you see lush vegetation and many broadleaf
trees farther down the slope. Your friend wonders why there is such a big difference. What explanation can you offer your friend? What will be an ideal response?