Q: What do you call a period when temperatures are cooler than normal, causing glaciers to spread? Choices: - polar age - earth age - thermal age - ice age A:
ice age

Q: An irreversible increase in size is known as? Choices: - mass - strength - volume - growth A:
growth

Q: Q: Composite cones are steep-sided, cone-shaped types of what, which produce explosive eruptions? Choices: - earthquakes - mountains - craters - volcanoes A:
A: volcanoes

Question: Q: The negatively charged electrons are attracted to the positively charged what? Choices: - axon - atom - ion - nucleus A:
Answer: nucleus

*Question*
Q: Muscles that position the pectoral girdle are located either on the anterior thorax or on this? Choices: - posterior thorax - inferred thorax - analogous thorax - posterior thorax A:
**Answer**
posterior thorax

(Q).
Q: What facilitates the diffusion of ions across a membrane? Choices: - photon channels - ionic bonds - passive transport - ion channels A:
(A).
ion channels