The abiotic and biotic
factors of an area and their
interactions
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How and why organisms are hierarchically classifies

Skulls of homo sapiens were found during an excavation. the skulls were preserved because the bodies were frozen. so, these fossils are ( 1 ) fossils. ( 1 ) a. mineralized b. mold c. original-tissue

Which best describes an adaptation that could be found in a fish that lives in a slow-flowing stream? the ability to attract prey by glowing extra gills, for oxygen extraction the ability to grow larger extra fat, for warmth