How have paleontologists contributed to humans' understanding of the history of life? Check all that apply.

They created a record of life on Earth.
They grouped organisms by their similarities.
They grouped organisms by the period in which they existed.
They discovered that the first humans lived with dinosaurs.
They discovered that life has existed since Earth was created.

They created a record of life on Earth.

They grouped organisms by their similarities.

They grouped organisms by the period in which they existed.

Explanation:

hope I helped enough

for (a) a tragedy was considered a main greek drama and it influenced alot of others. for (b) the actors in greek theater were named as aeschylus, sophocles, and euripides and sometimes playwrites. for (e) in a semi-circular theater called the "orchestra.". we'll the question was explain where the namer actors originated.

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because other regions has other things that egypt doesnt have.