Answer:
Over our lifetime, our DNA can undergo changes or mutations that result in differences in the DNA sequence and may affect the proteins that are made. Mutations can occur as a natural consequence of errors in DNA replication or as a result of exposure to environmental factors such as smoking, sunlight or radiation.
Explanation:
The answer is A .
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Answer: the <span>Permian–Triassic extinction event ; {"end of the Permian era"} .
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Explanation:
they are native plants in their new ecologies
Answer:
Effluent water
Explanation:
Effluent is a water that is returned to the environment after secondary treatment. It is a liquid waste that is discharged in the sea or river.:)
