Members of the ____ Ecdysozoan phylum include insects, spiders, crustaceans, millipedes, and centipedes

a. Arthropoda
b. Onychophora
c. Nemertea
d. Annelida
e. Nematoda


ANSWER: a

Biology & Microbiology

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Until the discovery of ________, enzymes were the only recognized biological molecules that were catalytic.

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

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The secondary level of protein structure is represented by the sequence of amino acids.

a. true b. false

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Which part of the Earth is warming the most quickly?

A) the Arctic B) the tropics C) the Northern Hemisphere D) All parts of the Earth are warming equally.

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One form of NGU is lymphogranuloma venereum caused by

A) Leptospira interrogans. B) Chlamydia trachomatis. C) Neisseria gonorrhoeae. D) Treponema pallidum. E) Candida albicans.

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