Q: When gametes unite during fertilization, the resulting zygote inherits two of what for each gene, one from each parent? Choices: - chromosomes - genomes - molecules - alleles A:
alleles

Q: Changing levels of what substances partly explain emotional ups and downs in teens? Choices: - nutrients - acids - enzymes - hormones A:
hormones

Q: Q: What type of minerals are often found where seas once covered the land? Choices: - magnesium - crystals - sea salt - carbonate A:
A: carbonate

Question: Q: Mass can be destroyed to release what? Choices: - acceleration - mass - velocity - energy A:
Answer: energy

*Question*
Q: Lungs, pharynx, larynx, trachea, and bronchi are part of which system? Choices: - nervous - digestive - neural - respiratory A:
**Answer**
respiratory

Q: What are the simplest types of carbon-based compounds? Choices: - particles - Microbes - Cells - hydrocarbons A:
hydrocarbons