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
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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
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
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
There are more rods than cones but many rods may synapse with one ganglion cell while only one cone synapses with one ganglion. Therefore, when light intensity drops at night, we can expect a lit city street scene to be
A. identical to the image formed of the street in daytime. B. more black-and-white and grainy. C. intense in color but grainy. D. more black-and-white but very sharp. E. intense in color and very sharp.