Each of the following statements concerning the gram-positive cell wall is true except
a) it contains teichoic acids.
b) it is sensitive to penicillin.
c) it protects the cell in a hypertonic environment.
d) it is sensitive to lysozyme.
e) it maintains the shape of the cell.

Which of the following are the functions of the skeletal system? blood cell production in soft marrow tissues and mineral reserves largest organ of the body for defense and support vitamin d production and pumping blood through vessels voluntary movement and contractile movement

9. the history of life on earth is recorded in

20 how are energy cycles and growth cycles related?