One of the major causes of the endangerment of giant pandas is ____.
A. habitat loss and fragmentation
B. increasing the effects of chemical pollution
C. a sexually transmitted disease that plagues the giant pandas
D. introduced exotic species into giant panda habitat
E. the excess withdrawal of water from their habitat
Answer: A
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The amount of water evaporated from the Earth's surface relative to the amount of water vapor transpired by plants is known as the ____
Fill in the blank with the appropriate word.
The shape of a virus is determined by
A. its DNA. B. its RNA. C. its envelope. D. its host. E. its coat protein organization.
Genetic predisposition to cancer means the person will definitely develop it within their lifetime.
Indicate whether the statement is true or false. a. True b. False
The parts of the central nervous system are the:
A) afferent and efferent. B) brain and spinal cord. C) nerves and receptors. D) autonomic and somatic.