18. In what way do amphibians differ from reptiles?
A. Amphibians have backbones.
B. Amphibians can live both on land and in water.
C. Amphibians can crawl.
D. Amphibians are oviparous.
19. Ostriches are classified as birds but cannot fly. Why?
A. They have thick feathers.
B. They have heavy weight.
C. They are afraid of heights.
D. They prefer to be in land.
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Answer:
18.B
Explanation:
One difference between reptiles and amphibians is their relationship with water. ... In addition, most amphibians lay their eggs in water. Reptiles, on the other hand, do not have to spend part of their lives in water, although they do often live near water and spend time in water.