If the gene pools of allopatric populations did not differentiate much during geographical separation, then upon
reestablishing contact, the populations may interbreed and merge into one. This phenomenon is called ____.
a. species clustering
b. divergence
c. hybridization
d. species fusion
e. convergence
ANSWER: d
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Protists are
a. autotrophic. b. heterotrophic. c. unicellular. d. multicellular. e. all of these.
Respiratory acidosis results when __________ are produced more rapidly than they are removed
a. oxygen molecules b. carbon dioxide molecules c. chloride ions d. hydrogen ions e. carbonic anhydrase molecule
Write out the growth equation including the following factors: natality, mortality, immigration, and
emigration. Provide a one-sentence explanation for the impact of each of these factors on the population growth rate. What will be an ideal response?
How are leaf-dropping in trees and colour change in the coat of the Artic fox related?
a. They are examples found in dark-dependent organisms. b. They are examples of adaptation to climate. c. They are examples found in organisms that live in the same area. d. They are examples of photoperiod-dependent phenomena.