Q: What term is used to describe major changes in the genetic material? Choices: - generational alterations - eukaryotic alterations - mutational alterations - chromosomal alterations A:
chromosomal alterations

Q: Alpha and beta decay occur when a nucleus has too many protons or an unstable ratio of what? Choices: - electrons to neutrons - atoms to neutrons - nucleus to neutrons - protons to neutrons A:
protons to neutrons

Q: Q: The second shell holds a maximum of how many electrons? Choices: - 9 - 12 - 6 - 8 A:
A: 8

Question: Q: What force explains why objects may float in water? Choices: - warm force - cool force - gravity force - buoyant force A:
Answer: buoyant force

*Question*
Q: Most reptiles reproduce sexually and have what type of fertilization? Choices: - additional - external - mechanical - internal A:
**Answer**
internal

(Q).
Q: What occurs when a former inhabited area gets disturbed? Choices: - tertiary succession - primary succession - tropical succession - secondary succession A:
(A).
secondary succession