What is measuring the age of fossils in years called

Some plants rely on the wind to reproduce an example is it’s important for plants to use the forces of nature to reproduce because 1. 1a white tuft of dandelion seeds 2a spiked burrs surrounding seeds 3a hard shell on a walnut? 2. 1b require pollination to reproduce 2b reproduce only asexually 3b cannot move about freely?

Did you know that a blue wales tongue weighs more than an elephant?

Which zone within the open-ocean zone is home to the most organisms? deep zone surface zone intertidal zone transition zone