Q: If a gas in a closed area experiences increases in pressure and decreases in temperatures, what other attribute of the gas will be affected? Choices: - gravity - velocity - temperature - volume A:
volume

Q: A sequence of amino acids in single polypeptide is the primary structure for what? Choices: - lipids - cells - dna - proteins A:
proteins

Q: Q: Amniocentesis and chorionic villus sampling can indicate whether a suspected genetic disorder is present at what stage? Choices: - toddler - adult - infant - fetal A:
A: fetal

Question: Q: Where do most ecosystems get energy from? Choices: - precipitation - forests - oceans - sunlight A:
Answer: sunlight

*Question*
Q: The heart, blood vessels, and blood make up which system in the body? Choices: - digestive - pulminary - respiratory - cardiovascular A:
**Answer**
cardiovascular

*Question*
Q: What are nutrients the body needs in relatively large amounts called? Choices: - adulterants - abundances - vitamins - macronutrients A:
**Answer**
macronutrients