Which of the following systems does the respiratory system depend on to function? *
a. Cardiovascular
c. urinary
d. digestive
b. Shoot
Which is the correct sequence of increasing organization? *
d. Organ, organism, tissue, cell
c. Atom, molecule, tissue, cell
b. Organelle, tissue, cell, organ
e. Cell, tissue, organ, organ system
a. Molecule, cell, organelle, organ
Skin, horns, hair, sweat glands and quills are all part of what organ system?*
a. nervous
b. respiratory
c. integumentary
d. digestive
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