Q: The entry of food into the esophagus marks the beginning of the esophageal phase of deglutition and the initiation of this? Choices: - relaxation - digestion - propagation - peristalsis A:
peristalsis

Q: What is the only human cell with flagella? Choices: - egg - saliva - Feces - sperm A:
sperm

Q: Q: There are three basic types of hormones: lipid-derived, amino acid-derived, and what? Choices: - manipulated - secreted - acidic - peptide A:
A: peptide

Question: Q: The urethra transports urine from what organ to the outside of the body for disposal? Choices: - heart - lungs - brain - bladder A:
Answer: bladder

*Question*
Q: The body of the simplest sponges takes the shape of a cylinder with a large central cavity, called? Choices: - spicule - vacuole - spirogyra - spongocoel A:
**Answer**
spongocoel

(Q).
Q: Which part of the nerve cell helps transmit nerve impulses? Choices: - dendrites - cell walls - synapses - long, threadlike extensions A:
(A).
long, threadlike extensions