Crustaceans are _____.

a) ecdysozoans
b) nematodes
c) arachnids
d) parazoans


Ans: a) ecdysozoans

Biology & Microbiology

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Viruses have typical cellular structure like other living organisms.

Answer the following statement true (T) or false (F)

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Which of the following U.S. Supreme Court decisions struck down laws prohibiting the teaching of evolution?

A) The State of Tennessee v. John Thomas Scopes, 1925 B) Epperson v. Arkansas, 1968 C) Edwards v. Aguillard, 1987 D) Tammy Kitzmiller, et al. v. Dover Area School District, et al., 2005

Biology & Microbiology

True or False: Vaccinations exist for malaria and have effectively wiped it from the United States but have been ineffective in other areas with endemic problems, such as Africa

a. TRUE b. FALSE

Biology & Microbiology

You expose a tube of bacteria to ultraviolet radiation to induce mutations. You then spread the bacteria on a plate containing media with all known required nutrients and wait until separate colonies form. Finally, you use replicate plating to transfer a print of this plate to an additional sterile plate containing minimal media plus a known required nutrient for the bacteria. Based on this protocol, colonies growing on the plate with minimal media would include what type of cells?

A. only mutant bacteria B. mutants that only require the supplied nutrient C. Both wild-type and all mutants D. only wild-type bacteria E. wild-type bacteria and the mutants that only require the supplied nutrient

Biology & Microbiology