Q: What do vertebrates have which invertebrates do not? A:

OPTIONS:
- appendages
- fangs
- tails
- backbones

Answer: backbones

Problem: OPTIONS:
- oxygen
- wire width
- wattage
- temperature
Q: Q: Solar cells create voltages directly from light, while thermoelectric devices create voltage from differences in what? A:
Answer: temperature

Problem:OPTIONS:
- taste
- touch
- hearing
- smell

Q: The anatomy of primate eyes shows they tend to rely more on vision than what sense, which is dominant in many other mammals? A:
****
A: smell

Q: What law explains why some objects float and some sink. A:
OPTIONS:
- newton's law
- montenegrins ' law
- flanges ' law
- archimedes' law
archimedes' law

Q: What bond is the force of attraction that holds together oppositely charged ions? A:
OPTIONS:
- magnetic
- iconic
- harmonic
- ionic

Answer: ionic

input with options: Q: What kind of mammalian reproduction is risky for the offspring but not the mother? A:
OPTIONS:
- asexual
- sexual
- cactaceae
- monotreme
output:
monotreme