Based on current hypotheses, the prokaryotic group that gave rise to eukaryotes is the ________
Fill in the blank(s) with correct word
Archaea
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CAM and C4 plants likely grow in what type of environment?
A. Cool B. Hot and arid C. High altitude D. In water
Over the past several decades, populations of Staphylococcus aureus (a type of bacteria that infects wounds) have become resistant to penicillin
You run the following experiment: Reference: Ref 14-1 In a different set of experiments, you identify two kinds of mutations in S. aureus. The first type of mutation makes the bacteria more susceptible to antibiotic X; the second type of mutation makes it more resistant to antibiotic X. Which type of mutation is more likely to occur in the population? A. the first type (more susceptible) B. the second type (more resistant) C. It depends if the cell population has been exposed to antibiotic X. D. It depends if either type of mutation confers additional survival benefits to S. aureus. E. There is no difference in likelihood because the mutation is a random event.
What causes the hypocotyl of dicots to straighten?
a. light b. gravity c. wind d. wind e. soil
The chromosome composition of 1 in 1,000 females is
a. XO. b. XX. c. XXX. d. XXY. e. XYY.