đề ktra

Trường THCS Gio Sơn BÀI KIỂM TRA
Lớp:..... Môn: Sinh học.
Họ và tên:..................... Thời gian: 45 phút.
Điểm




Lời phê của cô giáo:

ĐỀ BÀI:
Câu1:(3 điểm)Môi trường là gì? Có những loại môi trường nào? Phân biệt nhân tố sinh thái vô sinh với nhân tố sinh thái hữu sinh?
Câu 2:(3 điểm)Quần xã sinh vật là gì? Nêu những dấu hiệu điển hình của một quần xã?
Câu 3:(1điểm)Vì sao nhân tố sinh thái con người lại được tách thành một nhóm nhân tố sinh thái riêng?
Câu 4:(3 điểm)Một quần xã sinh vật gồm các sinh vật sau:Cỏ, dê, thỏ, sâu hại thực vật, chim ăn sâu,hổ, mèo rừng, vi sinh vật.
a.Trong quần xã trên có những chuỗi thức ăn nào?
b.Hãy xây dựng một lưới thức ăn?
c.Hãy chỉ ra mắt xích chung của lưới thức ăn.
BÀI LÀM:
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