Biotic is living things so it's either A or C I'm good at Biology I have a 100%
Answer: 3. A food chain follows one path of energy and materials between species. A food web is more complex and is a whole system of connected food chains. In a food web, organisms are placed into different trophic levels.
Explanation: I was unable to answer the first one, but I think I got the 3rd one down. Hope this helps! :)
Answer:
Petrified
Explanation:
petrified fossils formed when trees that died millions of years ago fell and became covered in mud and sand. Minerals seeped into the wood of the trees. Over time, the wood rotted away and the minerals took its place.