The protists are a diverse group of organisms that have traditionally been grouped together because they all ____
a. have the same type of nutrition
b. live in the same environments
c. have very similar DNA sequences
d. have very similar shapes
e. are not prokaryotes, fungi, plants, or animals
ANSWER: e
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A) The lysosome may mature from a late endosome. B) The lysosome may function in glycosylation. C) The contents of the lysosome originate in the smooth ER. D) The lysosome functions in export packaging. E) all of the above
Has this cell undergone meiosis?
a. yes, because there are no duplicated chromosomes b. no, because homologous chromosomes are present c. yes, because homologous chromosomes are not present d. no, because the diploid number is 2
Sarah is a little underweight for her size. As a result, her leptin levels will be __________ if
she gained a bit more weight.
a. higher than b. lower than c. the same as d. either higher than or the same as
All steroids have
a. the same number of double bonds. b. one or more fatty acids. c. four rings of carbon to which other atoms are attached. d. the same functional groups. e. the same number and positions of double bonds.