Q: What ancestors did caecillians evolve from? Choices: - ornithopod - arthropod - hominid - tetrapod A:
tetrapod

Q: What is formed when hot lava cools? Choices: - hydrogen crystals - lava rock - magma crystals - mineral crystals A:
mineral crystals

Q: Q: Tapeworms are what type of flatworms? Choices: - single-celled - endogenous - symbiotic - parasitic A:
A: parasitic

Question: Q: What kind of energy positions do electrons occupy during ground state? Choices: - closest energy positions - relative energy positions - highest energy positions - lowest energy positions A:
Answer: lowest energy positions

*Question*
Q: What do you call any force that makes something move in a circle? Choices: - cyclical - tangential force - momentum - centripetal force A:
**Answer**
centripetal force

Q: What are jellyfish and other cnidarian's stingers called? Choices: - prokaryotes - necrocytes - phenocrysts - nematocysts A:
nematocysts