While water continually orients phospholipids into a lipid bilayer, it does not fix the lipids permanently into position. Thus, the bilayer is considered to be _______
A. static
B. fluid
C. fluctuating
D. charged
B
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The nucleoli, found within the nucleus, are the sites of ____ synthesis
a. chromatin b. mRNA c. ribosomal subunit d. gene e. protein
Having aseptate hyphae, members of this phylum are described as coenocytic since they have
numerous nuclei in a common cytoplasm.
a. Glomeromycota b. Basidiomycota c. Chytridiomycota d. Zygomycota e. Ascomycota
Which suggests that life evolved from chemicals slowly increasing in complexity over a period of millions of years?
A) natural selection B) creationism C) gradualism D) chemical evolution
The carbon cycle is based on carbon dioxide. CO2 makes up about
A. 3% of the atmosphere. B. 0.03% of the atmosphere. C. 0.3% of the atmosphere. D. 0.003% of the atmosphere. E. 30% of the atmosphere.