You are presented with the question "What can be used for communication by animals?" and the following answer choices: - books - Electrical energy - electromagnetic energy - nails - chemical messengers - mechanical waves - encoded information - ice Now knowing that sound can be used for communication by animals and sound Sound waves are mechanical waves, choose the best answer.
mechanical waves

You are presented with the question "What is a result of when the cell cycle is no longer regulated?" and the following answer choices: - anemia - Smoking - Dehydration - fever - Pollution - mutation - radiation - bacteria Now knowing that cancer is a disease that occurs when the cell cycle is no longer regulated and cancer is also caused by a mutation, choose the best answer.
mutation

You are presented with the question "oval, unicellular fungi reproduce asexually by what?" and the following answer choices: - a cuticle - seeds - budding - epidermal - Deposition - sunlight - sun's heat - Joules Now knowing that yeast reproduce asexually by budding and yeasts are oval, unicellular fungi that reproduce by budding, choose the best answer.
budding

You are presented with the question "What is used to move people?" and the following answer choices: - Lift - Air - cars - Populations - wind - Raft - Move - marine Now knowing that transportation technology is used for moving people and transportation Transportation is by truck and raft, choose the best answer.
Raft