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图甲是某种二倍体动物细胞分裂过程中每条染色体DNA含量变化曲线图；图该生物细胞有丝分裂过程中细胞中染色体组数目变化的曲线图；图丙和图该生物体内遗传信息的传递与表达过程的示意图。请据图回答： (1)图甲中AB段形成的原因是_________，CD段表示细胞进入_______期。 (2)图，bc段形成的原因是_______，m所代表的数值是_____。 (3)图丙和图丁发生在图甲中的_______段。图丁过程中碱基配对方式与图丙中完全不同的一组是________。 (4)在下图中画出该生物减数分裂过程中染色体组数变化的曲线图。
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【单选题】Stop ______ this kind of snakes. They are ______.
A.
hunting; dying out
B.
to hunt; dying out
C.
hunting; dying away
D.
to hunt; dying down
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