Answer:
The fossil record helps paleontologists, archaeologists, and geologists place important events and species in the appropriate geologic era.
Explanation:
It is based on the Law of Superposition which states that in undisturbed rock sequences the bottom layers are older than the top layers.
2019 years have humans been on earth
They are poikilothermic or cold-blood
been seen eating the feces of crabs and sea lions
only ocean dwelling iguanas in the world
orient themselves so that they absorb sun through the skin
salt glands connected to the nostrils allows them to expel access sea salt