(Question)
Q: Living species of chordates are classified into three major subphyla: vertebrata, urochordata, and what? Choices: - spirogyra - invertebrates - xerophyte - cephalochordata A:
(Answer)
cephalochordata

(Question)
Q: The photoreceptive cells of the eye, where transduction of light to nervous impulses occurs, are located in this? Choices: - pupil - cornea - sclera - retina A:
(Answer)
retina

(Question)
Q: The procedure known as angioplasty is used when what part of the circulatory system is clogged? Choices: - lungs - the heart - the spinal cord - blood vessel A:
(Answer)
blood vessel