If the balance of nature is left untouched, landscapes can change dramatically over time. A previous ecosystem is supers..
Bryophytes (nonvascular plants) are a plant group characterized by lacking vascular tissues. They include the mosses, th..
Ferns and their relatives are vascular plants, meaning they have xylem and phloem tissues. Because of the presence of va..
Plant organs are comprised of tissues working together for a common function. The different types of plant tissues are m..
The gastrointestinal system breaks down particles of ingested food into molecular forms by enzymes through digestion and..
Plants are characterized by having alternation of generations in their life cycles. This tutorial is a review of plant m..
