 |
|
| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z |
|
|
plants
Organisms belonging to the kingdom Plantae, characterized by their ability to manufacture carbohydrates by photosynthesis. With more than 250,000 species, they are second in size only to the arthropods. The plants first appeared in the Ordovician, but did not begin to resemble modern plants until the Late Silurian. By the close of the Devonian, about 360 million years ago, there were a wide variety of shapes and sizes of plants around, including tiny creeping plants and tall forest trees.
Related category
• BOTANY
Also on this site:
Encyclopedia of Alternative Energy & Sustainable Living
Encyclopedia of History
Transport Concepts & Designs (partner site)