Multiple Choice
Ehleringer and Clark found that variation in leaf pubescence among plants of the genus Encelia appears to correspond to the distribution of these species along a ________ gradient from the California coast eastward.
A) light intensity
B) moisture
C) temperature
D) both light intensity and moisture
E) both moisture and temperature
Correct Answer:

Verified
Correct Answer:
Verified
Q15: An organism with a narrow habitat tolerance
Q16: In general, research indicates that as the
Q17: "Rarity I" can be described as<br>A) restricted
Q18: Whittaker's research on North American tree distribution
Q19: The creosote bush (Larrea tridentata) can have
Q21: Research by Hubble and Johnson showed that
Q22: Often an organism with a broad habitat
Q23: Research on North American bird populations have
Q24: Which of the following word pairs are
Q25: The rarest animal is the _ and