Q: What is the method that is a plan for asking questions and testing possible answers called? Choices: - forecasting - sample size - independent variable - scientific investigation A:
scientific investigation

Q: What is it called when something is unable to move from place to place? Choices: - Undrate - obovate - ovate - sessile A:
sessile

Q: What phenomenon is crowding out other species and making all the other causes of extinction worse? Choices: - climate change - human suburbanization - migration - human overpopulation A:
human overpopulation

Q: If two chlorine atoms share their unpaired electrons by making a covalent bond and forming cl2, they can each complete their what? Choices: - hypothesized shell - radiative shell - electron shell - valence shell A:
valence shell