Explanations for mass extinction include all of the following EXCEPT
a. collisions between the earth and other bodies in the solar system.
b. continental movements.
c. adaptive radiation of new predator species in many lineages.
d. alterations in sea level.
e. habitat destruction.
C
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Sporozoites observed in an insect's body likely indicate infection by an apicomplexan
Indicate whether the statement is true or false.
Which of the following is not a common feature of binary fission and mitotic cell division?
A. cellular growth B. DNA synthesis C. pinching of the parent cell into two daughter cells by the cytoskeleton or cytoskeleton-like proteins D. construction of a nuclear envelope
The JEMBEC transport system for Neisseria spp. provides an atmosphere with increased _________ to keep the organism viable during transport
a. hydrogen (H2) b. carbon dioxide (CO2) c. nitrogen (N2) d. nitrate (NO3)
Androgen insensitivity is characterized by
A. the internal sex organs of a female and may bear children. B. external female genitalia. C. a female karyotype. D. a lack of male hormones, such as testosterone.