Answer:
Every fossil tells us something about the age of the rock it's found in, and index fossils are the ones that tell us the most. Index fossils (also called key fossils or type fossils) are those that are used to define periods of geologic time
Explanation:
Answer: Fossils of limb structures provide evidence that ancient and modern tetrapods are related because it backs up the fact that both ancient and modern tetrapods follow the one bone two bone many bone digit pattern. It suggests to how modern and ancient tetrapods have the ancestry which come from early tetrapods.
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If you are filling out a punnet square it will look like the photo below but it will produce YySS yySS YYSs YYss YySs and yyss
Answer:
its like a quadrant.
Explanation:q4 ,same thing but negative.
