Two scientists co-discover a population of single-celled eukaryotes that do not have mitochondria. Whoa! One scientist thinks the cells must be from a lineage that never underwent endosymbiosis, but the other scientist thinks endosymbiosis happened at some point. Which of the following provides the BEST evidence to support the second scientist?A. the cells are incapable of surviving without sunlightB. sexual reproduction is never observedC. the nuclear genome has some genes from proteobacteriaD. the cells also contain chloroplasts
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Which osmotic and ionic strategies must marine teleost fishes employ?
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Select the correct answer. which term do biologists use to describe the average number of individuals of a species per unit area? a. carrying capacity b. population density c. minimal viable population d. survivability curve
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Select the true statements about eubacteria. most live as decomposers and heterotrophs. most only thrive in a narrow range of environments. certain eubacteria are responsible for food poisoning. eubacteria thrive in extreme environments.
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Asea turtle has washed up on a remote section of a beach. this known as a stranding occurs when a dead,sick or injured sea turtle washed up on the shoreline. which statment best explain why stranding should be reported immediately to local authorities
Answers: 1
Two scientists co-discover a population of single-celled eukaryotes that do not have mitochondria. W...
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