D. both scientists' conclusions could be valid.
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Mammals reproduce to the race
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I feel as though, if pollution isn't stopped, then there will be tons of oil and trash.
Over 14 <em>billion</em> pounds of plastic trash is thrown into oceans each year.
Scientists have come to believe that the ocean will have 937 million tons of plastic and only 895 million tons of fish by 2050. The plastic just might outweigh the fish! Some scientists also believe that in around 4 billion years, the ocean might become obsolete due to global warming causing higher evaporation.
4.9 million liters of oil is spilled into the ocean each year, the ocean might turn brown, fish and ocean animals could all go extinct.
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Cell walls can make plant material difficult to digest. Many herbivorous mammals have wide molars. These big teeth help them grind up leaves and grasses. Carnivorous mammals, on the other hand, usually have long, sharp teeth that help them grab prey and rip it apart. A group of herbivores called ruminants have specialized stomachs.
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