Question 5
which of the following is not considered part of the lung?
alveoli
bronchioles
bronchi
none of the above
.
1 points
question 6
humans have the red-colored pigment as their respiratory pigment.
chlorophyll
carotene
hemoglobin
none of the above
.
1 points
question 7
which of the following is not a part of the excretory system?
kidneys
liver
skin
none of the above
.
1 points
question 8
all vertebrates have paired
kidneys
malpighian tubules
nephridium
none of the above
.
1 points
question 9
kidneys secrete waste to maintain
body weight
homeostasis
muscle
none of the above