Q: What do you call the separation of ions that occurs when a solid ionic compound dissolves? Choices: - deformation - decomposition - dissolution - dissociation A:
dissociation

Q: What functions like a flexible coat of armor, preventing the protist from being torn or pierced without compromising its range of motion? Choices: - fimbriae - biofilm - endothelium - pellicle A:
pellicle

Q: Q: Motor vehicles account for almost half of the consumption of what? Choices: - hydrocarbon - greenhouse gases - electricity - fossil fuel A:
A: fossil fuel

Question: Q: A fully developed placenta is made up of a large mass of what? Choices: - brain tissues - plant cells - estrogen hormones - blood vessels A:
Answer: blood vessels

*Question*
Q: How many hydrogen atoms does a nitrogen atom of a primary amine have? Choices: - four - six - ten - two A:
**Answer**
two

Q: Earth goes through regular changes in its position relative to? Choices: - the moon - saturn - mars - the sun A:
the sun