Do ALL living things need oxygen? (Yes or No) If not, what organism(s) does not need oxygen?

ik this is a bad question but i literally dont know lol

Which of the following statements is most likely correct about a rock belonging to the jurassic age and a rock belonging to the cambrian age? options: 1) they have identical fossils of organisms that have evolved over time. 2) both have animal fossils preserved in them due to weathering and erosion. 3) they contain different fossils because life on earth has changed through time. 4) the fossils in them were formed on the surface of earth due to exposure to sunlight.

Drag each tile to the correct box. arrange the layers and faults from oldest to youngest.

In the ocean why are the greatest amount of primary producers found in the epipelagic zone and how does that affect biodiversity