Animals that lack a vertebral column are known as

A. inarticulates.
B. invertebrates.
C. supinates.
D. retrogrades.
E. aspinates.


B. invertebrates.

Biology & Microbiology

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F+ strains of Escherichia coli

A) do not have an F factor. B) have the F factor as a plasmid. C) have an integrated F factor. D) transfer the F factor to recipient cells at a high frequency.

Biology & Microbiology

The lowest level of biological organization that can survive and reproduce is the ____

a. cell b. tissue c. proton

d. nucleus e. DNA

Biology & Microbiology

What was the first disease shown to be bacterial in origin?

A) yellow fever B) cholera C) anthrax D) malaria E) tuberculosis

Biology & Microbiology

RFLPs can be used to establish parent-offspring relationships because, assuming that two parents are heterozygous for different sets of RFLPs, a child will have

a. four RFLPS, represented by two identical RFLPs from each parent. b. two different RFLPs, one from each parent. c. four RFLPS, represented by two different RFLPs from each parent. d. two identical RFLPs, one from each parent. e. two different RFLPs, both from one parent.

Biology & Microbiology