Q: If a quantity of a reactant remains unconsumed after complete reaction has occurred, it is? Choices: - reduced - static - missing - in excess A:
in excess

Q: What type of cells are often the product of normal cells that have lost the ability to regulate the cell cycle? Choices: - corrosive cells - uncontrolled cells - sick cells - cancerous cells A:
cancerous cells

Q: Q: The release of calcium ions initiates what? Choices: - exhalation - cramps - spasms - muscle contractions A:
A: muscle contractions

Question: Q: What term is used to describe how fast a chemical reaction occurs? Choices: - response time - catalysis - velocity - reaction rate A:
Answer: reaction rate

*Question*
Q: By breaking down wastes and remains of dead organisms, decomposers perform what function in an ecosystem? Choices: - reproduction - symbiosis - collecting - recycling A:
**Answer**
recycling

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