A compound is always a substance because it's made out of two or more atoms bonded together. Now a substance isn't always a compound because it takes two or more elements to create a compound in a chemical reaction, ans substances can contain only one element. In other words a substance can be constructed of one type of atom. Some substances that aren't compounds are: gold and baking soda.
Changes in the trilobite exoskeleton can be attributed to changing environments and competition for survival
Answer:
A. green color to blend in with leaves
Explanation:
Most of the jungle is just the color green, as there are many trees. Having a green color would help camouflage an organism to hide from predators. While flippers are a good adaptation, it's not as useful as camouflage. Some other good adaptations to have as an organism in the jungle are poison and mimicry.
Answer:
yeah I think so because if u look it uppp it said sooo