The flagella of bacteria rotate at their bases like propellers

Indicate whether the statement is true or false.


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Biology & Microbiology

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Which of the following is not true of water?

A. It is polar. B. It has a high heat of vaporization. C. It has cohesive properties. D. Its evaporation helps regulate body temperature. E. It is a relatively poor solvent.

Biology & Microbiology

In angiosperms, after fertilization, the triploid cell gives rise to:

a. a fertilized ovule b. a seed c. an embryo sporophyte d. endosperm e. a pollen grain

Biology & Microbiology

Which of the following is causing the decline

of amphibians worldwide?

a. loss of habitat b. increased UV light from climate change c. chemical pollutants d. pathogens e. all of these are causing the decline of amphibians worldwide

Biology & Microbiology

Which component is NOT found in a chloroplast?

a. a single outer membrane b. DNA c. ribosomes d. stroma e. thylakoids

Biology & Microbiology