Soup's Food Chain
저자: andrew campbell
1. sun
1.1. maple tree (producer)
1.1.1. squirrel (primary consumer)
1.1.1.1. snake (secondary consumer)
1.1.1.1.1. hawk (tertiary consumer)
1.1.1.2. owl (secondary consumer)
1.2. grass (producer)
1.2.1. cow (primary consumer)
1.2.2. bunny (primary consumer)
1.2.2.1. fox (secondary consumer)