Q: What was diorite commonly used for in ancient civilizations? Choices: - school - currency - medicine - art A:
art

Q: What term is used to describe the distance traveled divided by the time it took to travel that distance? Choices: - movement - motion - velocity - speed A:
speed

Q: Q: What structure consists of an outer layer of cells called the trophoblast and an inner cell mass called the embryoblast? Choices: - nucleus - cytoplasm - cell wall - blastocyst A:
A: blastocyst

Question: Q: Lampreys possess a large round sucker, lined with teeth, that surrounds the mouth and is used to feed on what? Choices: - parasites - herbivores - marrow - blood A:
Answer: blood

*Question*
Q: What are the specialized cells of sponges called? Choices: - plant cells - helper cells - t cells - collar cells A:
**Answer**
collar cells

*Question*
Q: Group 15 of the periodic table is also called which group? Choices: - oxygen - potassium - hydrogen - nitrogen A:
**Answer**
nitrogen