supply of food type of tree predation by carnivores amount of suitable shelter
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: In a large forest with many animals, there are only a small number of bears. Which of these most likely limits the population of bears in the forest?
Possibilities:
- supply of food
- type of tree
- predation by carnivores
- amount of suitable shelter

supply of food