Câu 1: Hệ sinh thái là gì ? Vẽ một lưới thức ăn và sắp xếp các sinh vật theo từng thành phần chủ yếu của hệ sinh thái. Câu 2: Trình bày các dạng tài nguyên thiên nhiên chủ yếu. Theo em dạng tài nguyên chủ yếu của con người trong tương lai là gì? Giải thích. Câu 3: Trình bày ảnh hưởng của nhiệt độ lên đời sống sinh vật? Cho ví dụ chứng minh. Cứu với huhuhuuuuuuuuu

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