Vitamin D is required for ____ absorption
a. sulfur
b. phosphorus
c. calcium
d. potassium
e. zinc
C
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The photosynthetic systems of algae living in deeper water are adapted to absorb more of the light of which of the following colors?
A. yellow B. red-orange C. blue-green D. purple E. white
The exponential growth rate of a population
under ideal conditions is its
a. carrying capacity. b. logistic growth. c. biotic potential. d. realized niche. e. density dependence
With each turn of the Krebs cycle, ____
a. the majority of ATP are produced b. oxygen is produced c. carbon dioxide is utilized d. NADH and FADH2 are produced e. pyruvate is produced
Which of the following characteristics is NOT a distinguishing feature of all primates?
Select one: a. opposable thumb b. fingernails c. usually single birth d. extended period of parental care e. expanded hindbrain