The excretory system in mammals consists of the following parts except
two kidneys
two ureters
two bladders
one urethra
Correct answer is C
No explanation has been provided for this answer.
The following characteristics are associated with the mammalian lungs except
large surface area
expandable lungs
moist surface
highly vascularized
Correct answer is B
No explanation has been provided for this answer.
contraction of arteries to let out blood
contraction of veins to allow blood into them
dilation of arteries to accommodate blood rushing through
pumping action of the heart to move blood round the body
Correct answer is D
No explanation has been provided for this answer.
The inorganic components of bone consist of
magnesium, sodium, and calcium
magnesium, phosphorus, and calcium
sodium, phosphorus, and calcium
potassium, magnesium, and calcium
Correct answer is B
No explanation has been provided for this answer.
The axial skeleton is composed of the
skull and vertebral column
limbs and girdles
atlas and axis
radius and ulna
Correct answer is A
No explanation has been provided for this answer.