Q: What part of the muscle fibers cause shortening and contraction? Choices: - fasciae - pores - collagen - myofibrils A:
myofibrils

Q: The second step in eukaryotic cell division is division of which part of the cell? Choices: - protons - molecules - Cell Division - nucleus A:
nucleus

Q: Q: What destroys the filtered pathogens? Choices: - parasites - neutrophils - antibodies - lymphocytes A:
A: lymphocytes

Question: Q: After what stage do the last 2 stages of food processing occur? Choices: - filtration - excretion - circulation - digestion A:
Answer: digestion

*Question*
Q: What phenomenon, crucial for evolution, creates new genetic variation in a gene pool and is how all new alleles first arise? Choices: - radiation - natural selection - adaptation - mutation A:
**Answer**
mutation

(Q).
Q: What kind of process is boiling? Choices: - chemical - spheroidal - cavitation - isothermal A:
(A).
isothermal