The development of the .......... egg and .......... fertilization freed the animals from the aquatic environment for reproduction and development.
A
Land, internal
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B
Aquatic, internal
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C
Land, external
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D
Arboreal, external
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Solution
The correct option is A Land, internal The development of the land egg and internal fertilization freed the animals from the aquatic environment for reproduction and development.
Fertilization which takes place inside the female body is called internal fertilization. It freed the animals from the aquatic environment for reproduction and development.