2020-2021学年七年级下册生物苏科版同步课时作业（10）鸟类
※题型：单选题※知识点：单选题※试题难度：中等<br>成语“鹬蚌相争”中的鹬、蚌两种动物体内与外界气体交换的场所分别是( )<br>A.肺、肺 B.肺、鳃<br>C.肺和气囊、肺 D.肺和气囊、鳃<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/4e8224c269c34583a2e955a8b5b00a45/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/d0a17854cb314ee89e4ca4f8c25a4534/2BA78879DEC69E96635BD13A3AEB0E18.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>鸟有发达的气囊,关于气囊的叙述错误的是( )<br>A.辅助呼吸 B.气体交换<br>C.暂时储存气体 D.散热降温<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/1894e3bf5c8744feae8454a6ba03130a/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/501c1dfbe8874b628b3f0ef097d41894/82C8D2843CA3F6DCE870C1DD4C6A5C6E.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>家鸽体内气囊的作用是( )<br>A.可减少身体比重 B.有利于散热降温<br>C.有利于双重呼吸 D.以上三项都是<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/6f979bfb380941ef89a25828c24ccf85/01A39E48B8A67989A23F6887F26FCC64.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/e998611b737b4c2b86d75586701a744c/EADE14D69E6F675B336D75EB34E7D153.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>鸟类呼吸的主要特点是( )<br>A.在肺和气囊里都进行气体交换<br>B.身体里有气囊进行呼吸<br>C.每呼吸一次,在肺里进行两次气体交换<br>D.肺有很强的呼吸能力<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2019/712a027e96b44b1d86d999a541d548b9/06CA09E70C17EF8BA2D3B8C70D693953.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2019/a7bef9d1ce9d4c93920fac2498b50c78/5ABDC5F9410CB40E7CEF0E58F56DA6E4.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>“两个黄鹂鸣翠柳,一行白鹭上青天。”鸟类不仅善于鸣叫,而且善于飞行。下列各项中,与鸟类飞行生活无直接关系的是( )<br>A.身体呈流线型,体表被覆羽毛<br>B.具有坚硬的角质喙<br>C.骨骼轻,长骨中空,内充空气<br>D.胸肌发达<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/edb4620e49de4edfa0d66a8a53b70e79/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/c13902b493054bf6abcc2e4d10304f9a/0CF467750B4B68AC79009909AB731687.png"><br><br>※题型：单选题※知识点：单选题※试题难度：较易<br>下列动物中,属于恒温动物的是( )<br>A.青蛙和蜥蜴 B.鲸鱼和鸵鸟 C.扬子鳄和蝉 D.燕子和蚯蚓<br>答案<br><img src="https://picture2.zhihuicn.com/answer/2/9/2020/b29bdf4c147e4f079abf04dac50d184d/76900E09FAB5EBA344B8EA84E844FF07.png"><br>解析<br><img src="https://picture2.zhihuicn.com/explain/2/9/2020/c0adad7b9a3847aead493c272858f5e1/71559D2184B4F1543F82542C2162F700.png"><br><br>※题型：单选题※知识点：单选题※试题难度：中等<br>秋天,林区的树干上悬挂一些人工巢箱,是为了( )<br>A.保护鸟类免受敌害<br>B.招引食虫鸟类在巢箱中繁殖<br>C.保护一些不会营巢的鸟类,防止被冻死<br>D.捕捉鸟类<br>答案<br><img src="https://picture1.zhihuicn.com/Answer/2/9/CB10E80A5A739A58F1312BA12F379467.png"><br>解析<br>略<br>
页:
[1]