Based on the Mayr definition of a biological species, bacteria cannot be classified as a species for which reason?

A. The DNA sequences of all bacteria are more than 97% identical.
B. Bacteria are present everywhere and cannot be reproductively isolated from other bacteria.
C. Bacteria cannot reproduce.
D. Bacteria do not evolve.
E. Bacteria are asexual.


E. Bacteria are asexual.

Biology & Microbiology

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A biologist discovered a new animal. Upon studying its embryonic development, she observed radial cleavage with the blastopore developing into an anus. This animal was categorized as a  

A.  parazoan. B.  radiata. C.  deuterostome. D.  protostome. E.  pseudocoelomate.

Biology & Microbiology

What pigments are present in the samples derived from individuals that are homozygous dominant (AA) for shell color?

a. Red and grey b. Yellow and grey c. Red and yellow d. Red, yellow, and grey

Biology & Microbiology

Laboratory simulations provide indirect evidence that organic compounds such as __________ and __________ selfassemble

spontaneously under conditions like those thought to have prevailed on the early Earth. Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

Most microbes are in the environment

What will be an ideal response?

Biology & Microbiology