Q: The amniotic egg first evolved in what species? Choices: - birds - amphibians - mammals - reptiles A:
reptiles

Q: What is the unit of evolution? Choices: - dna - the cell - a phylum - the population A:
the population

Q: Q: What is the term for a natural situation which arises to physically divide organisms? Choices: - assimilation - reproduction - extinction - vicariance A:
A: vicariance

Question: Q: What kind of electricity can you generate with the energy found in flowing water? Choices: - wind energy - electrical power - transient power - hydroelectric power A:
Answer: hydroelectric power

*Question*
Q: What is secreted before ejaculation to neutralize acidic urine remaining in the urethra? Choices: - sperm - semen - pre-cum - clear mucus A:
**Answer**
clear mucus

*Question*
Q: Reflection, refraction, and diffraction are examples of what type of interaction? Choices: - winds - Oscillations - Currents - waves A:
**Answer**
waves