Q: Q: Although what biochemicals circulate throughout the body and come into contact with many different cell types, they only affect cells that possess the necessary receptors? Choices: - Cells - organs - enzymes - hormones A:
A: hormones

Q: Q: Radar maps of venus show that it has mountains, canyons and volcanoes surrounded by plains of what? Choices: - helium - grasses - water - lava A:
A: lava

Q: Q: Alpha and beta decay occur when a nucleus has too many protons or an unstable ratio of what? Choices: - electrons to neutrons - atoms to neutrons - nucleus to neutrons - protons to neutrons A:
A: protons to neutrons

Q: Q: What occurs when two nonpolar liquids are mixed? Choices: - sediment - nonpolar interactions - refracted - nonpolar interactions - polar-nonpolar interactions - nonpolar-nonpolar interactions A:
A: nonpolar-nonpolar interactions