Chicken, black beans and walnuts are all found in the protein group
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Fish are a class of aquatic vertebrates. The combination of gills, fins and the fact that they live only in the water make fish different from all other animals.
Answer:
Because we cannot see some animals properly like jellyfish as their tissue is too soft, and feathers or for can often not make an imprint on fossils.
Explanation:
They have the same sexual reproduction as any other species look up videos on youtube is the best advice i can give you