Which plant performs C4 photosynthesis?
A) pineapple
B) sugarcane
C) jade plant
D) oak tree
B
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How do eukaryotic plant and animals cells differ from one another?
A. Animal cells have mitochondria and plant cells have chloroplasts. B. Plant cells have a vacuole and animals cells don't. C. Animal cells have endoplasmic reticulum and plant cells don't. D. Animal cells have a plasma membrane and plant cells have a cell wall.
The carbon dioxide that we breathe out is a breakdown product of cellular respiration; the
carbon atoms come primarily from which molecules?
a. glucose b. proteins c. oxygen d. water
In a eukaryote, DNA polymerase can add up to
a. 1,000 nucleotides per second. b. 500 nucleotides per second. c. 50 nucleotides per second. d. 10 nucleotides per second. e. one billion nucleotides per minute.
Which of the following best describes the period during which the developing offspring is considered a fetus?
A) the first trimester only B) the third trimester only C) from fertilization to three weeks D) from nine weeks until birth E) from fertilization to eight weeks