Q: Hydrogen and helium are specifically involved as reactants in what nuclear reaction that is useful for making energy? Choices: - destructive fusion - radioactive fusion - nuclear fission - nuclear fusion A:
nuclear fusion

Q: Autoimmunity can develop with time, and its causes may be rooted in this? Choices: - inheritance - resistance - spontaneous mutation - molecular mimicry A:
molecular mimicry

Q: Q: Most arthropods are insects. the phylum also includes spiders, centipedes, and what? Choices: - amphibians - crystals - coral - crustaceans A:
A: crustaceans

Question: Q: Because heating results in a greater fraction of molecules having the necessary kinetic energy to escape the surface of the liquid, what occurs more quickly when liquid is heated? Choices: - oxidation - expansion - absorption - evaporation A:
Answer: evaporation

*Question*
Q: What term is used to describe when a liquid is the temperature at which its equilibrium vapor pressure is equal to the pressure exerted on the liquid by its gaseous surroundings? Choices: - freezing point - burning point - evaporating point - boiling point A:
**Answer**
boiling point

(Q).
Q: Plants are complex organisms with tissues organized into what? Choices: - carbons - systems - families - organs A:
(A).
organs