To be classified as a eukaryote, an organism must have

A) centrioles.
B) a cell wall.
C) flagella.
D) internal membranes.
E) sexual reproduction.


D

Biology & Microbiology

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The female homolog of the glans penis is the:

A. clitoris B. labia minora C. labia majora D. vulva E. vagina

Biology & Microbiology

Early in development, female mammalian embryos convert an X chromosome in each cell into an inactivated form. What is this form called?

a. neutral X b. odontoid process c. Barr body d. axial body

Biology & Microbiology

Mucus secreted by mucous membranes provides protection against infections by

A) forcing the pathogen to die in the struggle to free itself (like a fly strip). B) trapping and removing pathogens. C) phagocytosing pathogens by macrophages. D) destroying pathogens by the complement system. E) drowning the pathogen.

Biology & Microbiology

In photosynthesis, the chemiosmotic production of ATP

A) requires oxygen. B) is similar to the production of ATP in mitochondria. C) is done by the Calvin cycle. D) is a result of the oxidation of glucose.

Biology & Microbiology