The number and variety of species in an area is the
A) taxonomy.
B) clade.
C) biodiversity.
D) domain.
E) synapomorphy.
C
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Which of the following is NOT an example of kinetic energy?
A. heat B. light C. sound D. the energy in chemical bonds E. random molecular movement
Which statement concerning systems biology is FALSE?
a. It involves the reductionist approach. b. It involves the analysis of large amounts of data. c. It focuses on the functioning of biological systems. d. It focuses on individual components rather than the whole. e. It is also called integrative biology.
Choanoflagellates have been important for the study of cell communication evolution because
choanoflagellates have:a. signal transduction pathways unlike those in other bacteria. b. signaling molecules similar to those of other protists. c. signal transduction pathways that interfere with the cells they infect. d. protein kinases similar to those in animals. e. G proteins different from those in prokaryotes.
Muscular contraction moves food through the alimentary canal by a process called ________
A) propulsion B) active transport C) peristalsis D) swallowing