Fossils
Vestigial structures
Homologous structures
Molecular evidence
Comparative embryology
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My guess would be mRNA or RNA but I'm not too sure about this question, sorry.
All of these countries except for the United States use the metric system. Please mark Brainliest!!!
<span>D. take energy from the sun and make it usable for living things.
Producers are plants. Plants make energy from the sun through the process of photosynthesis and other living things (such as animals) eat the grass (known as grazing)
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Answer: A) Tropical regions have more available niches into which new species can occupy.
Explanation: USATestPrep