Experiments like those performed by Stanley Miller in the 1850s demonstrated that lightening fueled atmospheric
reactions could produce ____.
a. self-replicating DNA molecules
b. organic compounds required for life under artificial conditions
c. prokaryotic cells under artificial conditions
d. meteorites containing the building blocks of life
e. organic molecules in hydrothermal vents
ANSWER: b
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What phenomena can cause fluctuations in anchovy fisheries?
a. Global Warming b. Coral bleaching c. El Niño d. Turbidity currents
Genetic variation in behavior occurs between species and within species. Describe the genetic basis for the difference in mating behaviors in closely related species of voles
What will be an ideal response?
______________ twins result from a single fertilization event. Fill in the blank(s) with the appropriate word(s). Fill in the blank(s) with the appropriate word(s)
Which organism exhibits meroblastic cleavage?
a. echinoderms b. amphibians c. mollusks d. annelids e. birds