1. eliminating some diseases
2. improving certain species (like growing bigger apples)
Answer:
A portion of an aquifer that contains rock material that does not allow water to penetrate; often forms the base of unconfined aquifers and the boundaries for confined aquifers.
The correct answer is: B) As land plants became more complex, animal life did as well.
This is because land could not be colonized by other organisms such as animals until land plants became established-there was nothing for animals to feed on.
So, plants were one of the earliest organisms to leave the water and colonize land.
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The correct option would be B. results in the formation of a compound
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- Ally ✧
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