A gametophyte is a __________ plant body that

grows by __________ from a __________.
a. haploid; mitosis; spore
b. diploid; mitosis; spore
c. diploid; mitosis; zygote
d. diploid; meiosis; fertilized egg
e. haploid; mitosis; fertilized egg


Answer: a

Biology & Microbiology

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What discoveries in the fossil record led to

questioning the concept that species didn’t change?

a. the oldest layers contain fossils of simpler organisms b. more recent layers contain fossils more similar to existing species c. many fossils were found of extinct animals d. more recent layers contain fossils that are more complex than earlier ones e. all of these are discoveries in the fossil record that led to questioning the concept that species didn’t change

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The energy used to generate most of the ATP formed in aerobic respiration is released when electrons are passed from

NADH along a chain to ____.

a. oxygen b. acetyl CoA c. FADH d. CO2. e. NADPH

Biology & Microbiology

Folding domains typically range in length from ____________ amino acids

A. 1,000 to 1,5000 B. 10 to 20 C. 200 to 275 D. 50 to 80 E. 25 to 100 or more

Biology & Microbiology