High numbers of coliforms indicate recent fecal contamination.

A) True
B) False


A) True
Feedback: This answer is true because coliforms survive in natural waters but will not generally multiply there.

Biology & Microbiology

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Monocots' lack of vascular cambium is due to an evolutionary reversal

A. true B. false

Biology & Microbiology

Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?

What will be an ideal response?

Biology & Microbiology

Which scientist(s) identified the transforming substance involved in changing R bacteria to S?

a. Avery and McCarty b. Griffith c. Chargaff d. Hershey and Chase e. Pauling

Biology & Microbiology

What characteristics define mammals?

What will be an ideal response?

Biology & Microbiology