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Coquina, a type of limestone, forms from shell fragments that settle on the ocean floor. what type of rock is coquina?

The ancestors of plants that lived in water had plenty of water for the young. angiosperms are a group of land plants that evolved a reproductive trait for living on land. this trait protect young plants by allowing them to grow only when water is present and the conditions for healthy development are right. what trait most likely young angiosperms in this way?

Explain why biological control methods are generally environmentally superior to chemical pest control methods.