What are at least two arguments for conserving biodiversity?
What will be an ideal response?
ANSWER: The chapter outlines three general benefits and provides examples for each. Biodiversity
benefits humans directly. For example, a cancer drug found in the Pacific yew tree and genes
from wild species that may serve as sources for genetic variation in agricultural crops.
Biodiversity is related to ecosystem services, which benefit humans indirectly. For example,
carbon sequestration. Finally, it is argued that biodiversity has intrinsic value where
emotional or spiritual connections to natural landscapes and species enhance human
existence.
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We typically think of bacteria as inhabiting human intestines. In (or on) what other locations of a healthy human body would you expect to find bacteria? (Select all correct choices.)
A. in the mouth B. on the skin C. in the nose D. on the hair
In interference competition, two or more populations use the same limiting resource
Indicate whether the statement is true or false.
Asexual Reproduction
What will be an ideal response?
The term "respiration" in animals refers to the ____.
A. movement of oxygen into an animal only B. movement of carbon dioxide out of an animal only C. movement of oxygen into an animal and the movement of carbon dioxide out of the animal D. binding of oxygen to hemoglobin molecules in the blood E. diffusion of oxygen across a cell membrane