Q: What are all scientific explanations and interpretations based on? Choices: - changes - theories - controls - facts A:
facts

Q: What are the most abundant unicellular algae in the oceans? Choices: - chlorella - sporozoans - staurikosaurus - chryosophytes A:
chryosophytes

Q: Q: What are mid-wavelength electromagnetic waves commonly referred to as? Choices: - gamma rays - x-rays - electricity - light A:
A: light

Question: Q: What do red blood cells carry? Choices: - carbon dioxide - nitrogen - hydrogen - oxygen A:
Answer: oxygen

*Question*
Q: Which water from the equator mixes with cold water from the poles? Choices: - spring water - hot - ice water - warm A:
**Answer**
warm

Q: What part of the body does hepatitis b effect? Choices: - kidney - joints - heart - liver A:
liver