During fertilization, ____ egg and sperm combine to form a ____ zygote.

A) diploid; diploid
B) diploid; haploid
C) haploid; diploid
D) haploid; haploid
E) diploid; tetraploid

The concept of exclusive representation was intended to protect workers from the influence or dominance of:

A) Competing unions.
B) Company dominated unions.
C) Unscrupulous union leaders.
D) Worker infighting.

Meiosis results in a change in chromosome number indicated by

A) 2n to 2n.
B) 2n to n.
C) n to 2n.
D) n to n.
E) 2n to 2n in diploid organisms, n to n in haploid.

Which statement about cholesterol is TRUE?

A) If the blood contains too much HDL, cholesterol may be deposited on the arterial wall.
B) LDLs transport cholesterol from cells to the liver when cholesterol levels are high.
C) LDLs must bind with an LDL receptor on the cell membrane to be taken up by cells.
D) Most plasma cholesterol is transported on HDLs or high-density lipoproteins.
E) Omega-3 fatty acids are thought to decrease HDL levels.