In your backyard you overturn a large rock. In the damp soil underneath the rock, you see various insects scurrying for cover: one black spider, five black ants, two brown beetles, and three gray pillbugs. In this community of organisms, species richness
is represented by
A) the ants, since there are more of them than any other organism.
B) eleven total organisms.
C) four different species of organisms.
D) the ants and the spider equally, since they have the greatest number of organisms of the same color.
Answer: C
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Eucarya
A. consist of only multicellular organisms. B. have a more complex internal structure than archaea or bacteria. C. have a simpler internal structure than archaea or bacteria. D. have a membrane around the DNA. E. have a more complex internal structure than archaea or bacteria AND have a membrane around the DNA.
If a mammal suffered damage to the temperature sensor in its brain, what would be the result?
A. The integrating center would not receive inputs to compare to the set point. Body temperature could rise or fall to dangerous levels. B. Only the integumentary system is required to sense temperature changes. Body temperature would remain stable. C. The animal would have to rely on shivering instead of vasoconstriction to maintain body heat. D. The animal would fall back onto a more primitive ectothermic mode of regulation. Clarify Question What is the key concept addressed by the question? What type of thinking is required? Gather Content What do you already know about temperature regulation? What other information is related to the question? Choose Answer Given what you now know, what information is most likely to produce the correct answer? Reflect on Process Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
DNA contains an organism's genetic material, organized into sequences called:
a. genes. b. chromosomes. c. gametes. d. nuclei. e. sperm and egg cells.
Chemoautotrophs are the dominant primary producers in oxygen-deficient environments, such as the hydrothermal vents of the deep ocean floor
Indicate whether the statement is true or false