The skeletons of ray-finned fishes are made of cartilage
Indicate whether the statement is true or false
FALSE
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The chemicals that attract neutrophils to a site of infection are called ____________________
Fill in the blank(s) with correct word
When cells metabolize protein, ammonia is formed. An example of an animal that directly excretes ammonia without further modification is a
a. fish. b. bird. c. snake. d. turtle. e. human.
Kinesin 1 and myosin II share each of the following features except
A) two heads. B) dimers formed by heavy chain tails coiled around each other. C) formation of bipolar filaments. D) plus end directed motor activity. E) ATPase activity.
Which aspect of population genetics can lead to changes in allele frequencies in a new mixed population following migration?
A) natural selection B) mutation C) gene flow D) founder effect E) bottleneck effect