Which of the following statements are true of the cell wall?

i. composed of proteins and lipids
ii. composed of proteins and cellulose
iii. located in animal cells
iv. located in plant cells
v. semipermeable
vi. not permeable at all

a. ii, iii, iv, and vi only
b. ii, iv, and v only
c. i, iv, and vi only
d. i, iii, iv, and v only

Which best explains how a heat pump can heat a room? cold air from the house is moved through pipes, where it absorbs thermal energy. warm air from outside is pushed into the house to replace the cold air. combustion warms the air when chemical energy is transferred to thermal energy. fuel is used to move a piston, which pushes warm air into the house.

Did you know that a blue wales tongue weighs more than an elephant?

What is gene expression control that occurs after the generation of rna