Regions of high species diversity always support the highest numbers of endemic and threatened species.
a. true
b. false
Ans: b. false
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Most plants store carbohydrates in the form of
(a) glucose. (b) sucrose. (c) starch. (d) water.
Which of the following is NOT true about invasive species?
A. Invasive species generally reproduce rapidly. B. Invasive species are the key living species on which the community depends for survival. C. Invasive species are without any natural enemies in a new environment. D. The zebra mussel is an example of an invasive species. E. Asian carp is an example of an invasive species.
Which of these events occurs first in seed germination?
A) Cell division occurs in the embryo and growth starts. B) Mitochondria multiply and provide energy for growth processes. C) Water is taken up. D) Oxygen is produced and proteins are synthesized.
The two copies of a replicated chromosome are called sister_______.
Fill in the blank(s) with the appropriate word(s).