2. skeletal muscle:
a. is involuntary
b. is made up of muscle fibers
c. is attached to bone via ligaments
d. all of the above

In addition to seeds, which of the following characteristics are unique to the seed-producing plants? a) sporopollenin b) lignin present in cell walls c) pollen d) use of air currents as a dispersal agent e) megaphylls

What are the doorways into and out of cells, attached to the membrane, and built in the rough er.

Which of the following will a bacterium produce when a human gene is added to its genome? question 4 options: human carbohydrates a protein made up of both human and bacterial properties the human protein coded for by the human gene human plasmids that can be isolated from the bacterium