What would be an example of a means for carbon atoms to be cycled through non- living parts of an ecosystem? Please help (choose all that apply)
1. carbon dissolved in rainwater

2. carbon stored in an underground deposit of petroleum

3. carbon present in a living animal

4. carbon dioxide used in a plant during photosynthesis

5. carbon dioxide released by burning log ​

Explain the side effects of cancer treatments

Which best describes red blood cells? a. they are colorless b. they protect against disease-carrying microorganisms c. they transport oxygen throughout the body d. they aid in blood clotting

Match the type of adaptation to the correct example, structural adaptation functional adaptation behavioral adaptation example type of adaptation elephants live in herds to protect their young leaves of a rain forest plant species have a pointed tip that enables rainwater to drain off easily. camels have nostrils that they can close snakes produce venom to kill prey and defend themselves. earthworms coil when touched, as part of a defense mechanism. human skin darkens with increased exposure to sunlight.