The function of nectar is
A. provision of carbohydrates for the plant.
B. attraction of pollinators.
C. a sticky trap for parasitic insects.
D. prevention of desiccation.
E. preservation of delicate flower parts.
Answer: B
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In a bacterium, we will find DNA in _____
A) a membrane-enclosed nucleus B) mitochondria C) the endoplasmic reticulum D) the nucleoid E) ribosomes Answer: D
Overlap of niches can be minimized through:
A. increased population growth. B. species evolving similar adaptations over time. C. resource partitioning. D. reduction in the size of the fundamental niche. E. an increase in the similarity of species occupying an area.
The development of the endoplasmic reticulum and nucleus are explained by the endosymbiotic theory
Indicate whether the statement is true or false.
This animal has two atria and two ventricles
and two vascular circuits. This animal is
a. a Mountain Bluebird. b. a fire-bellied toad. c. a trout. d. a lobster. e. more than one of these