A pollen grain coat is composed of which of the following?
a. sporopollenin
b. cellulose
c. peptidoglycan
d. exopolysaccharides
e. integuments
ANSWER: a
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A scientist is studying endosymbiosis in cells. This means she is investigating
A. how mitochondria and chloroplasts were derived from eukaryotic cells. B. how mitochondria and chloroplasts were derived from prokaryotic cells. C. how mitochondria and chloroplasts evolved into eukaryotic cells. D. how mitochondria and chloroplasts evolved into prokaryotic cells.
Evolution _____
a. is natural selection b. is heritable change in a line of descent c. can occur by natural selection d. is heritable change in a line of descent and can occur by natural selection
Which is a genetically modified organism but not a transgenic organism?
A) Flavr Savr peaches (peaches that express larger quantities of a peach stability enzyme) B) Golden Rice (rice that expresses daffodil and bacteria beta-carotene synthesis enzymes) C) AquAdvantage salmon (Atlantic salmon that expresses Chinook salmon growth hormone) D) Roundup Ready soybeans (soybeans that express bacterial pesticide enzymes)
The term ________ is used to describe moving oxygen-rich air into the lungs and carbon dioxide-laden air away from the lungs
Fill in the blank(s) with correct word