Question: Q: What element is the sun mostly made up of? Choices: - manganese - mercury - helium - hydrogen A:
Answer: hydrogen

Question: Q: What type of tissue is blood? Choices: - muscular - epithelial - nervous - connective A:
Answer: connective

Question: Q: What type of evolution often happens in species that have symbiotic relationships? Choices: - retrogression - succession - spontaneous evolution - coevolution A:
Answer:
coevolution