What is the most accurate statement about temporal variation of plant biomass of a community?
A. It decreases as species diversity increases.
B. It increases as species richness increases.
C. It decreases as species richness decreases.
D. It does not correlate with species richness or diversity.
E. It increases as species diversity increases.
Answer: A
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Which of the following reactions is an example of dehydration synthesis?
A) Fat ? fatty acids + glycerol B) Glucose + galactose ? lactose C) Peptide ? alanine + glycine D) Cellulose ? glucose E) Glycogen ? glucose subunits
Which type of muscle is under voluntary control?
A) Cardiac B) Oxygen enriched C) Epithelial D) Smooth E) Skeletal
Cones
a. detect coarse perception of movement. b. detect very dim light. c. detect changes in light intensity across the visual field in dark places. d. contain disks packed with the visual pigment rhodopsin. e. detect bright light.
The courtship rituals of many related animals are highly species-specific and prevent the related species from mating. This is an example of
A. habitat preference. B. ecological isolation. C. seasonal isolation. D. behavioral isolation.