Fact 1: Mating is generally preceded by courtship. Fact 2: Courtship is similar across species. Given the two facts above, answer the question "What is generally similar across species?" with the following options: - tail fins - our star - the eyes - vision - mating - Flowers - bushes - alpacas
mating

Fact 1: Gases from burning coal and oil dissolving in water in the atmosphere causes acid rain. Fact 2: Acid rain can harm plant life and actually kill plants. Given the two facts above, answer the question "gases from burning coal and oil dissolving in water can harm what?" with the following options: - soils - people - oil reserves - plant life - animals - coal factories - humans - gas buildup
plant life

Q: Fact 1: Many consumers feed at more than one trophic level. Fact 2: Consumers are heterotrophs that feed on tissues of other organisms. Given the two facts above, answer the question "What may eat other organisms at more than one trophic level?" with the following options: - barnacles - chickens - fur seals - humans - heterotrophs - mammals - animals - rabbit
A: heterotrophs

Question: Fact 1: Glass cause refraction of light. Fact 2: Electromagnetic Spectrum Different wavelengths of light are refracted by different amounts. Given the two facts above, answer the question "Light shining through glass will look like what after exiting?" with the following options: - liquid - red-shifted - dirty - green - spectrum - heat - heat energy - sunlight
Answer: spectrum

*Question*
Fact 1: Mutation creates new genetic variation in a gene pool. Fact 2: Genetic variation is the basis for natural selection. Given the two facts above, answer the question "What is a basis for natural selection?" with the following options: - fur and fat - competition - mutation - root growth - insects - animals - trees - cows
**Answer**
mutation

(Question)
Fact 1: Veins generally carry deoxygenated blood. Fact 2: Arteries and veins are blood vessels. Given the two facts above, answer the question "what carries deoxygenated blood?" with the following options: - cows - mammals - elephants - goats - vessels - crocodiles - ferns - chickens
(Answer)
vessels