How many layers of phospholipids make up the plasma membrane?

A) 1
B) 2
C) 3
D) 4


B

Biology & Microbiology

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Darwin believed that the many kinds of finches present on the Galapagos Islands all arose through_____

a. inheritance of acquired traits b. divine creation in their present form c. diversification from a single common ancestral species d. descent from a group of similar finch species that arrived on the islands earlier

Biology & Microbiology

An increase in which of the following will increase the rate of diffusion?

a. Temperature b. Solvent density c. Molecule mass d. Number of proteins

Biology & Microbiology

Why are slow-twitch muscle fibers more resistant to fatigue than are fast-twitch fibers?

What will be an ideal response?

Biology & Microbiology

A solution with a pH of 3 is highly ________.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology