At-Home STEM Activities: A Plant Family Tree

Since this week is National Wildflower Week, we’re spending the week looking at the plant world. First a quick look at the evolution of plants.

Biologists believe that plants evolved from algae between 400 and 500 million years ago. The first plants were bryophytes that did not have vascular tissue- that means that they didn’t have special systems for moving water and nutrients from one part of the plant to another- instead these things moved by osmosis.