Carbon dioxide is transported in the blood in three ways: (i) dissolved in solution; (ii) buffered with water as carbonic acid; (iii) bound to proteins, particularly haemoglobin. Source: https://academic.oup.com/bjaed/article/5/6/207/331369
Answer:
dna, fossils (fossil layers), similarities in embryos, and similarities in different organisms that are currently existing.
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Explanation:
<span>A snake that eats a frog that has eaten an insect that fed on a plant is a FOOD CHAIN
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