Kara worked in the produce department of a grocery store in the afternoons. She wondered how much the ripeness of bananas affected the sale of the fruit. She collected data for 10 days on the total number of pounds of bananas sold of green, yellow, and brown-black bananas. What is the independent variable in her experiment?
A. Type of people who buy different bananas
B. Amount of bananas sold
C. Ripeness of bananas
D. The number of days the data was collected
Ans: C. Ripeness of bananas
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A. are prokaryotes or eukaryotes, depending on the species. B. produce chlorophyll under aerobic conditions. C. produce chlorophyll under aerobic conditions and are prokaryotes or eukaryotes, depending on the species. D. are eukaryotic organisms.
The most likely reason that glucose dissolves in
water is that it is a. an ionic compound. b. a polysaccharide. c. polar and forms many hydrogen bonds with the water molecules. d. a very unstable molecule. e. highly nonpolar.
You find some rather strange plants in your backyard. They consist only of thin, pale yellow stems that are wrapped around other species of plants growing nearby. You experiment by unwrapping some of the strange yellow plants and planting half of them alone in pots of soil and half in pots with other plants from your yard. You water and fertilize both sets of pots, but after a few weeks you find that the yellow plants that were potted alone have died, while those potted with other plants are thriving. What term would you use to describe the strange yellow plants?
A. asexual B. holoparasitic C. monophagous D. aposematic E. hemiparasitic
The sigma subunit of bacterial RNA polymerase is required for?
a. termination of transcription b. initiation and termination of transcription c. recognition and specific binding to the promoter d. all of the answers are correct