Protists in this group have a pellicle, and a light-sensitive organ called the stigma.
A. euglenoids
B. dinoflagellates
C. choanoflagellates
D. foraminifera
Answer: A
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The end of the nucleic acid chain that grows by adding more nucleotides is always the
A. 5 prime end. B. C terminal. C. N terminal. D. 3 prime end.
Which process is responsible for the evolution of mitochondria and chloroplasts in eukaryotes?
a. endosymbiosis b. conjugation c. transformation d. transduction
What did Darwin find in South America that suggested that the Andes mountains had been gradually lifted up over millions of years?
a. marine snail fossils high up in the Andes mountains b. bird fossils at the top of mountains in Argentina c. dinosaur bones in the Amazon basin d. impressions of ocean waves at the top of a mountain
Which mechanism of controlling gene expression occurs outside of the nucleus?
A) adding a cap and tail to RNA B) DNA packing/unpacking C) RNA splicing D) translation