A(n) ________ is a substance that appears to be identical to a drug being tested but has no known effect on the condition being studied

Fill in the blank(s) with correct word


placebo

Biology & Microbiology

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Refer to the paragraph on the Venter et al. paper and the table above. What practical applications for human society may arise first from this or similar metagenomic studies?

A) New genes with useful properties may be identified and ultimately put to use. B) New microbial species could be isolated from seawater. C) An increased knowledge of the diversity of marine ecosystems could lead to investigations of diversity in other ecosystems. D) Species discovered in the Sargasso Sea may also be found to inhabit less-remote waters.

Biology & Microbiology

In their basic body plan, mollusks have a visceral mass covered with a soft epithelium and a muscular ____ that is used in locomotion. 

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

Which term refers to hairlike projections, such as root hairs, that are specialized outgrowths of the plant epidermis?

a. bark b. protoplasts c. trichomes d. cuticles

Biology & Microbiology

The experiments conducted by John T. Needham using infusions were interpreted as supporting the theory of

A) antisepsis. B) bioremediation. C) spontaneous generation. D) etiology. E) chemotherapy.

Biology & Microbiology