Insects and bats both have wings. This proves they evolved from a common ancestor
Indicate whether the statement is true or false
FALSE
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Which of the following comparisons between gap junctions and plasmodesmata is NOT true?
A. Both allow exchange of material between cells, but gap junctions allow larger-sized molecules to transfer between cells. B. Animal cells have gap junctions, and plant cells have plasmodesmata. C. In plasmodesmata, the plasma membranes of the connected cells are continuous, while in gap junctions, the plasma membranes of the connected cells remain distinct. D. Gap junctions connect cells directly at the plasma membranes, but plasmodesmata must also bridge the cell wall separating the two cells. E. All of the above statements are true.
Facultative anaerobic bacteria
a. do not tolerate oxygen. b. respire in low oxygen. c. are chemosynthetic. d. require oxygen to perform photosynthesis. e. are common in open water samples.
The ability to meet humanity's current needs without compromising the ability of future generations to
meet their needs is: a. environmental sustainability. b. species richness. c. biosphere diversity. d. resource conservation. e. habitat regeneration
Mobile prokaryotes can move around with the help of
A) endospores. B) flagella. C) sex pili. D) peptidoglycan. E) plasmids.