Ques:Q: Genetic disorders are diseases caused by what? Choices: - lesions - environment - traits - mutations A:

Ans:mutations
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Ques:Q: People with which skin type run a greater risk of vitamin d deficiency? Choices: - lighter skin - brighter skin - weaker skin - darker skin A:

Ans:darker skin
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Ques:Q: How does the atomic number change during beta emission? Choices: - stays the same - increases by two - decreases by one - increases by one A:

Ans:increases by one
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Ques:Q: Most arthropods are insects. the phylum also includes spiders, centipedes, and what? Choices: - amphibians - crystals - coral - crustaceans A:

Ans:
crustaceans
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