All energy sources have some impact on our environment. Fossil fuels—coal, oil, and natural gas—do substantially more harm than renewable energy sources by most measures, including air and water pollution, damage to public health, wildlife and habitat loss, water use, land use, and global warming emissions.
Answer:
A.
Explanation:
An allele is a variant form of a given gene.
Answer:
A biologist discovered a young, four-legged animal. The animal had lungs, seemed to fertilize internally, and its outer surface was covered with scales. In which class of animals is the biologist likely to place the animal?
reptile
The abiotic factor is the amount of oxygen. Abiotic means non-living, and all the other answer choices reference living things.
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