Which pigments reflect red, orange, and yellow light?
a. chlorophyll a
b. phycocyanobilin
c. phycoviolobilin
d. carotenoids
e. anthocyanin
d
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Which of the following is not true of sponges?
A. Mesohyl is mostly noncellular and provides structural support. B. Choanocytes have flagella that beat in a coordinated fashion. C. Sponges are among the most primitive organisms to have developed reproductive organs. D. Gas exchange of oxygen and carbon dioxide occurs through diffusion.
Which of the following invertebrates is most closely related to vertebrates?
a. lancelets b. tunicates c. sea stars d. earthworms e. leeches
During apoptosis
a. digestive enzymes are unleashed. b. proteases break down structural proteins. c. nucleases break down nucleic acids. d. the nucleus breaks apart. e. all of these occur.
Grouping of organisms or objects based on a set of criteria that helps organize, communicate, and retain information
a. Binomial Nomenclature b. Taxonomy c. DNA Anaylsis