Which subphylum includes shrimp, lobsters, and crabs?
a. Trilobita
b. Crustacea
c. Hexapoda
d. Chelicerata
Ans: b. Crustacea
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All phototrophic bacteria use a monophyletic photosystem in photosynthesis, thus there is intense competition for light between different phototrophic bacteria
Indicate whether the statement is true or false.
The unique feature of HeLa cells that make them
important for research is that a. they are identical to all other human cells. b. they are immortal cells and will grow in culture. c. they are limited in growth cycles. d. they are like stem cells. e. all of these make them important.
For the purposes of this question, assume that being Rh+ is a consequence of D and that Rh- individuals are dd. The ability to taste phenylthiocarbamide (PTC) is determined by the gene symbolized T (tt are nontasters)
A female whose mother was Rh- has the MN blood group, is Rh+, and a nontaster of PTC, and is married to a man who is MM, Rh-, and a nontaster. List the possible genotypes of their children. Assume that all the loci discussed in this problem are autosomal and independently assorting.
Industrial canning, as opposed to home canning, is achieved using a pressure cooker which operates in a manner similar to an autoclave
Indicate whether the statement is true or false