The transition to multicellularity:
a. has occurred once.
b. is an obligate condition.
c. is only in slime molds.
d. must convey a selective advantage to individuals.
D
You might also like to view...
In water, MgCl2 dissociates into Mg2+ and Cl- . Based on this information what type of bond is involved in the formation of MgCl2?
A. hydrogen B. ionic C. polar covalent D. nonpolar covalent E. electrostatic
Single-celled parasites known as ____ infect insects, fish, and humans (especially those with compromised immune
systems).
a. amoebae b. red algae c. microsporidia d. dinoflagellates e. apicomplexans
During muscular contraction, cross-bridges form between ________ and ________ .
A. myosin; tropomyosin B. troponin; calmodulin C. myosin; troponin D. actin; myosin E. actin; tropomyosin
In which biome would you expect to find large numbers of black bears, snowshoe hares, moose, lynx, wolves, and deer?
A) Chaparral B) Savanna C) Northern coniferous forest D) Desert E) Tropical rain forest