(Question)
Q: What are the four well-known states of matter? Choices: - solid, liquid, gas, and wave - solid, liquid, plasma, and metal - solid , imine , gas , and plasma - solid, liquid, gas, and plasma A:
(Answer)
solid, liquid, gas, and plasma

(Question)
Q: Where is the only place an electric charge can be found? Choices: - translator - ion - neuron - conductor A:
(Answer)
conductor

(Question)
Q: On the ventral side of the embryonic disc, opposite the amnion, cells in the lower layer of the embryonic disk (the hypoblast) extend into the blastocyst cavity and form this? Choices: - embryo sac - neural sac - algae sac - yolk sac A:
(Answer)
yolk sac