If marine species live mainly in areas teeming with life, then marine species live mainly in areas teeming with what? Answer choices: - dust - matter - growth - life - mammals - energy - waves - spiders
life

If disease-causing microbes have a negative impact on humans, then disease causing microbes have what type of impact on humans? Answer choices: - toxins - neutral - negative - Roundworms - Annelids - positive - heterotrophs - beneficial
negative

Q: If antigens are molecules that the immune system recognizes as needing to be rejected from the body, then antigens are molecules that the immune system recognizes as needing to be what? Answer choices: - welcomed into the body - it needs them - stored in the body - accepted into the body - major threat to health - Something that causes allergies - rejected from the body - members of their own species
A: rejected from the body

Question: If earth orbiting the Sun causes days to change, then what causes days to change? Answer choices: - Space travel - recovery time from fatigue - Earth orbiting the Sun - sunlight - earthquakes - Solar energy - prolonged thirst - global warming
Answer: Earth orbiting the Sun

*Question*
If seasons happen because of orbital tilt, then what causes seasons to change? Answer choices: - Time and energy - gravity - orbital tilt - clouds - global warming - weather - climate - an object
**Answer**
orbital tilt

(Q).
If if sunlight is conducted to the surface of the ocean then it will become hot, then sunlight can be conducted to the surface of the ocean to make it what? Answer choices: - moves - expand - warm - ice - colder - stay warm - hotter - frozen
(A).
hotter