Problem:OPTIONS:
- curved
- concave
- diffraction
- convex

Q: What mirrors diverge light rays and, thus, have a negative focal length? A:
****
A: convex

Problem:OPTIONS:
- monosomy
- polysomy
- mosaicism
- trisomy

Q: What is it called when a human has an extra autosome? A:
****
A: trisomy

Problem:OPTIONS:
- the macula
- the iris
- the cornea
- the pupil

Q: What is the opening in the front of the eye? A:
****
A: the pupil

Problem:OPTIONS:
- mitosis
- spawning
- hibernation
- pollination

Q: What step, involving placement of a substance on the stigma, precedes fertilization? A:
****
A:
pollination