生物圈中的大气圈、水圈、岩石圈是截然分开的．______．（判断对错）-七年级生物

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• 下列关于生态系统的说法，正确的是（）A．生态系统由生产者、消费者、分解者组成B．生态系统中的物质和能量都是循环的C．海洋是地球上最大的生态系统D．各种生态系统之间是有联系的-生物
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• 下列关于生态系统的叙述，错误的是（）A．生物圈是一个统一的整体，是地球上最大的生态系统B．一个生态系统中，往往有很多条食物链，它们彼此交错连接，形成食物网C．生态系统具有-生物
• 地球上适合生存的地方，其实只是它表面的一薄层，科学家把这一薄层叫做（）A．生物圈B．大气圈C．岩石圈D．水圈-生物
• 以下关于生物圈的叙述中，不正确的是（）A．生物圈包括大气圈的下层、整个水圈和岩石圈的上层B．生物圈中有维持生命的空气、阳光、水等条件C．生物圈的大致范围为海平面以上1万米-生物
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• 地球上所有生物共同的家园是（）A．生物圈B．陆地生态系统C．海洋生态系统D．城市生态系统-生物
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• 在生物圈的各个圈层中，生物种类最多的是[]A．大气圈B．水圈C．岩石圈D．无法确定-七年级生物
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• 生物圈的范围是大致是[]A．海平面以下10千米和海平面以上10千米之间B．水圈和岩石圈C．海平面以下100米和海平面以上100米D．大气圈和岩石圈-七年级生物
• 下列关于生物圈的说法正确的是[]A．生物生活的地方B．大气圈的底部C．地球上全部的生物D．地球上的生物及其生存环境-七年级生物
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