embe afwhich proup ae thoughi to be the closes elativesof th A) Euglenozoans B)
ID: 278597 • Letter: E
Question
embe afwhich proup ae thoughi to be the closes elativesof th A) Euglenozoans B) Choanoflagellates c) Stramenopiles D) Alveolates E) Chlorophytes 92. Why are actinobacteria important? A) They are photoheterotrophs B) They are the source of many important artibiotics. C) They are Gram-negative bacteria. D) They were once classifled as protists E) They are the only bacteria that divide by mitosis. 93. One factor that determines the consequences of a bacterial infection for the host is the ability of the bacterium to produce chemical substances injurious to the tissues of the host. The anthrax-causing bacterium Bacilus anthracis, produces few toxins; however, it can multiply readily and ultimately invades the entire bloodstream. We say such a bacterium has A) low invasiveness and high toxigenicty B) high invasiveness and high toxigenicity C) low invasiveness and low toxigenieity D) high invasiveness and low toxigenicity Why is the protein cytochrome e important in the study of molecular evolution? A) It is found in all eukaryotes. B) Its mutation rate is very low. 94. C) Its mutation rate fluctuates to a great extent. D) It is found in all animals. E) All of its mutations are adaptive changesExplanation / Answer
63) D fossils. These are presrved remains, impressions, bones of any species of organisms that once lived upon the planet.
64) A half life It is the time taken for half the amount of radioactive material to decay
65) B Xylem It is a type of transport tissue in the plant, that transports water
66) E adaptation
67) C Gram positive Gram positive bacteria retain the primary violet stain and are not decolourized and hence do not take up the secondary pink stain
Kindly ask questions separtely and not all at once
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.