A(n) morphogen is a chemical agent that affects the differentiation of cells and the development of form. Indicate whether the statement is true or false
True
Biology & Microbiology
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Urine contains antimicrobial substances
Indicate whether this statement is TRUE or FALSE.
Biology & Microbiology
A pine tree is
a. an angiosperm. b. a haploid plant body. c. a sporophyte. d. the dependent stage in the conifer life cycle. e. all of these.
Biology & Microbiology
Refer to Figure 30-1. The development pattern labeled Type A is characteristic of:
a. ctenophores.
b. chordates.
c. cnidarians.
d. annelids.
e. echinoderms.
Biology & Microbiology
Collar cells are found in:
a. segmented worms. b. sponges. c. cnidarians. d. flatworms. e. nematodes
Biology & Microbiology