Q: In a displacement graph, the slope of the line is the average what? Choices: - direction - speed - time - velocity A:
velocity

Q: What cannot be created or destroyed in a chemical reaction? Choices: - heat - mass - energy - matter A:
matter

Q: What traits do the sponge and tarantula share? Choices: - number of eyes - number of legs - lifespan - lack of backbone A:
lack of backbone

Q: Organisms that lack both a nucleus and membrane-bound organelles are known as what, in general? Choices: - photosynthetic - barren - trophic - prokaryotic A:
prokaryotic