You are presented with the quiz "what is reduced in condensation when changing from a gas into a liquid?"   But you don't know the answer, so you turn to your teacher to ask for hints. He says that "condensation is when change from a gas into a liquid by reducing heat energy" and "heat is kinetic energy".   So, what's the best answer to the question?

Answer: kinetic energy


You are presented with the quiz "What needs to attract a mate in order to give birth to live young?"   But you don't know the answer, so you turn to your teacher to ask for hints. He says that "an animal needs to attract a mate to reproduce" and "mammals are animals which raise their young on milk and typically give birth to live young".   So, what's the best answer to the question?

Answer: mammals


You are presented with the quiz "What occurs when many muscles contract a little bit all at once?"   But you don't know the answer, so you turn to your teacher to ask for hints. He says that "shivering occurs when many muscles contract a little bit all at once" and "involuntary contractions, shivering, cause the production of heat".   So, what's the best answer to the question?

Answer: the production of heat


You are presented with the quiz "Cells are the basic units of the structure and function of what?"   But you don't know the answer, so you turn to your teacher to ask for hints. He says that "cells are the basic units of the structure and function of living things" and "an organism is a living thing".   So, what's the best answer to the question?

Answer: