The larger, harder, and more rigid cones that come from pine trees are…

What is the defining characteristic of gymnosperms?

True or false: antheridium and archegonium are diploid plant tissues.

What is the opening in the pine needle for gas exchange known as?

A pinecone would most likely come from a…

What plant spores are used in theatrical explosions and at one time were used for flash photography? (Hint: we watched a video where a scientist used this to make a flamethrower).

What is the function of spores?

True or false: conifers are evergreens.

Why is the ephedra plant often called whorehouse tea?

In ferns, what structure contracts to release spores from the sporangium?