When did arundant fossil evidence first appear in the geologic record

Paleozoic.

Era immediately follows Precambrian It lasted about 4.5 billion years.

When did abundant fossil evidence first appear in the geologic record.

540 million years ago.

protist eukaryotes that are not plants, animals, or fungi ("misfits")

your body is trying to warm itself up. or more precisely, sensors in your skin send messages to your brain to generate heat to your body.