Endocytosis. That is the process of the intake of food by creating a vesicle.
500 because of the 10% rule when moving up in food chains, for example; patch of grass-200J rabbit eats some of it but doesn’t eat all - 150J the rabbit runs around for a bit and loses energy, the fox doesn’t eat all of the rabbit - 50J ( just a rough example may not be completely right but the concept of the rule is there and the energy).
Answer:
1. flame color (i think)
2. carbon dioxide is a reactant
Wolves are a predator they hunt in pacts so A is out of the question C isn't right either They'll get hunted down more same reasoning with that and D would mean they are starting to overpopulated ( B) is your answer