Which of the following eukaryotic organelles
are believed to have existed as independent
prokaryotes in the past?
a. peroxisomes
b. chloroplasts
c. mitochondria
d. lysosomes
e. more than one of these
B
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The symptoms of fetal alcohol syndrome include
A) impaired intellect. B) an extra nipple. C) accelerated growth. D) webbing between the toes.
In the context of vision, what does accommodation mean?
a. lack of receptor response to continued light signal b. changing the lens shape c. moving the lens closer to or further away from the retina in order to focus the image d. keeping the lens under tension to allow for image focusing e. preventing light from scattering upon entry to the eye
Proteins are essential parts of all structures and biological processes in cells
a. True b. False
Who discovered the first antimicrobial widely available to the general public?
A. Domagk B. Ehrlich C. Fleming D. Waksman E. Ehrlich and Waksman