Họ và tên:. Kiểm tra 1 tiết Điểm Lời phê của cô giáo Lớp: 7.. Môn sinh học Đề số 1 Phần trắc nghiệm: Khoanh trũn vào đỏp ỏn đỳng Cõu 1. Thõn cỏ chộp hỡnh thoi đầu thuụn nhọn gắn chặt vào thõn cú ý nghĩa gỡ? A. Giảm sức cản của nước B. Dễ phỏt hiện con mồi và kẻ thự C. Vỡ cỏ chộp là động vật biến nhiệt ở nước D. Để giỳp cỏ chộp đẻ nhiều trứng Cõu 2. Tim của cỏ chộp cú A. 3 ngăn B. 4 ngăn C. 2 ngăn D. 3 ngăn cú vỏch ngăn hụt tõm thất Cõu 3. Cơ quan hụ hấp của ếch A. Tim và phổi B. Phổi và da C. Phổi và mang D. Phổi Cõu 4. Đõu khụng phải đặc điểm bộ xương Thằn lằn búng đuụi dài A. Xương nhẹ , xốp B. Xương sọ bảo vệ bộ nóo C. Xương chi yếu D. Xương cột sống cổ cú 8 đốt Cõu 5. Đặc điểm thõn nhiệt của chim bồ cõu A. Rất thấp khi trời lạnh C. Khụng phụ thuộc vào mụi trường B. Rất cao khi trời núng D. Phụ thuộc vào mụi trường Cõu 6. Bộ răng của Hổ A. Bộ răng phỏt triển răng cửa dài B. Mừm kộo dài, răng nhọn, răng hàm cú 3,4 mấu nhọn C. Răng nanh nhọn sắc, răng hàm khỏe,nhiều mấu dẹp, răng cửa ngắn và sắc D. Thiếu răng nanh, răng hàm khỏe,nhiều mấu dẹp, răng cửa ngắn và sắc Phần tự luận Cõu 1. (1,5đ) Trỡnh bày đặc điểm chung của Lớp Bũ sỏt? Cõu 2. (3,5 đ) Phõn tớch đặc điểm cấu tạo của chim bồ cõu thớch nghi với đời sống bay lượn? Cõu 3. (2đ) Nờu đặc điểm về hỡnh thức sinh sản của cỏc lớp thuộc Ngành Động vật cú xương sống? Theo em hỡnh thức sinh sản nào tiến húa nhất, vỡ sao? 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