Microbial species are difficult to define because they are often polyphyletic

Indicate whether the statement is true or false.


Answer: FALSE

Biology & Microbiology

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Which of the following symptoms are characteristic of someone who has AIDS? a. All of these choices

b. Enlarged lymph nodes c. Weight loss d. Chronic fatigue e. Fever

Biology & Microbiology

Which term refers to the specialized male gametophyte of seed plants, such as gymnosperms?

a. pollen grain b. strobilus c. sporopollenin d. ovule

Biology & Microbiology

How is a nerve impulse usually transmitted across a synapse from a presynaptic to a postsynaptic cell?

a) via a direct connection b) via Na+ ions c) via a neurotransmitter d) via a spark e) via plasmodesmata

Biology & Microbiology

What is the genotype of a dominant individual if, when selfed, some of its offspring show the recessive phenotype?

A) Either DD or Dd B) dd C) DD D) Dd

Biology & Microbiology