If carcinogens can lead to cancer in genes that control the cell cycle, then what can lead to cancer in genes that control the cell cycle? Answer choices: - radiation - adding heat - competition - ice - bacteria - air - carcinogens - Smoking
carcinogens

If birds sing to defend territories and for courtship, then how do birds court and defend territories? Answer choices: - Summer - sound - ligt - singing - mechanical - movement - exercise - autumn
singing

Q: If hearing is used for sensing sound by cows, then what uses hearing to sense sound? Answer choices: - bacteria - h2o - Whales - dogs - humans - cows - protist - bears
A: cows

Question: If you can find marine biomes in the Pacific, then where can you find marine biomes? Answer choices: - Lake Michigan - The Pacific - Absorb light - complex - the environment - The Amazon - The Missisippi - salt and water.
Answer: The Pacific

*Question*
If herbivores eat producers or other living things, then herbivores eat producers or other what? Answer choices: - roadkill - Most plants - living things - scarce resources - carcasses - dead things - Chemical energy - Organic compounds
**Answer**
living things

*Question*
If using a gasoline engine requires easy ignition, then using a gasoline engine requires what? Answer choices: - electricity - no ignition - carbon dioxide - easy ignition - difficult ignition - no gasoline - hydrogen and oxygen - adding heat
**Answer**
easy ignition