*Question*
Q: Titration is a method to determine what in acids or bases? Choices: - alkalinity - maturation - glucose - concentration A:
**Answer**
concentration

*Question*
Q: Because these components of the endocrine system are transported via blood, they get diluted and are present in low concentrations when they act on their target cells. Choices: - enzymes - antibodies - minerals - hormones A:
**Answer**
hormones

*Question*
Q: Some earthworms can also reproduce asexually by fragmentation followed by what? Choices: - fertilization - germination - digestion - regeneration A:
**Answer**
regeneration

*Question*
Q: What type of terminal releases neurotransmitters at a synapse? Choices: - acetylcholine, - secretion - chloride - axon A:
**Answer**
axon