Q: Morphological and molecular data indicate that wings evolved how many times in insects? A:

OPTIONS:
- many times
- twice
- never
- once

Answer: once

Problem: OPTIONS:
- the pupil
- the vitreous fluid
- the cornea
- the retina
Q: Q: Ciliary muscles control the shape of the lens, which bends light and focuses it on what? A:
Answer: the retina

Problem:OPTIONS:
- protons
- droplets
- plasmids
- platelets

Q: Cells in blood include red blood cells, white blood cells, and what? A:
****
A: platelets

Q: What type of vertebrates are birds? A:
OPTIONS:
- epidermal tetrapod
- invertebrates
- exothermic
- endothermic tetrapod
endothermic tetrapod

Q: Every human cell has the same what, and each cell has thousands of them? A:
OPTIONS:
- chromosomes
- DNA
- ribosomes
- genes

Answer: genes

input with options: Q: During metamorphosis, most salamander species go through what aquatic stage on the way to becoming adults? A:
OPTIONS:
- prophase
- metaphase
- anaphase
- larval stage
output:
larval stage