U8C34 Vertebrates: Anamniotes
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4. The round mouths of Agnatha are due to the fact that they don't have a jawbone. 5. Lampreys feed on blood and flesh of their hosts. 6. Cartilage 7. Better eyes, limbs that help them move on land, and lungs to help them breath 8. Water 9. Caeciliand use their skin, feeling vibrations in the ground
艾希马尔福的图书馆 回复 @勇敢乐乐不怕困难: 答对了
- 开心果小马
以前不会的现在会了
- 开心果小马
真厉害
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写的作业请查收∶ 1. Anamniotes are organisms that don't have embryos encased in an amnion. 2. Fish and amphibians reproduce sexually, creating offspring through the fertilization of egg cells. 3. The air bladder helps a fish float in water.
艾希马尔福的图书馆 回复 @勇敢乐乐不怕困难: 很好