A high concentration of chlorophyll embedded in the plasma membrane fold of a newly discovered species of bacteria suggests a
A. Chemolithoautotrophic metabolism
B. Photoautotrophic metabolism
C. Chemoheterotrophic metabolism
D. Photoheterotrophic metabolism
Answer: B
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What is the difference between a community and an ecosystem?
A. A community includes interacting populations with their surrounding environment, while an ecosystem does not include the surrounding environment. B. A community includes interacting populations without their surrounding environment, while an ecosystem includes the surrounding environment. C. A community and an ecosystem are the same thing in ecology. D. A community includes abiotic factors, while an ecosystem does not.
what gas is used to sterilize catheters and rubber tubbing in hospitals?
What will be an ideal response?
Gemmae function for
a. sexual reproduction. b. water retention. c. anchorage of a liverwort thallus to the substrate. d. asexual reproduction.
Animals that select mates that are phenotypically similar will have ________ when compared with Hardy-Weinberg predictions.
A. more homozygotes. B. more mutations C. more heterozygotes D. less natural selection E. fewer homozygotes