What is the net movement of substances to regions of lower concentration called?
A. Osmosis
B. Active transport
C. Facilitation
D. Diffusion
D. Diffusion
Biology & Microbiology
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Large blood vessels that supply the spongy tissue of
the penis are __________ in an unaroused male. a. vasodilated b. vasoconstricted c. secreting prostaglandins d. volume reservoirs e. inhibiting testosterone secretion
Biology & Microbiology
RNA nucleotides are linked by the enzyme _____________.
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology
This group of proteins can actually punch holes in pathogenic cells
A) complement system B) histamines C) fibrinogens D) interleukin I
Biology & Microbiology
The thread of DNA between nucleosomes is called _____________ DNA
a. nonhistone b. core c. insulator d. linker e. hypersensitive
Biology & Microbiology