Friday, August 27, 2010

AP Bio pt.2

The Littoral Zone  refers to that part of a sea, lake or river that is close to the shore. For example the shore on the beach.
Tree like with Woody Stems normally with a single trunk.
Xylem cells tend to conduct water and minerals from roots to leaves. These tomatoe plants from my garden are a perfect example because they need water to survive to produce more tomatoes.
Spores can be found in many plants and ferns.
Modified leaf of a Plant is Modified leaf is an adaptation of plant meant for its own survival and adapted due to its environmental stress.
Heartwood-is the central wood in a branch or stem characterized by being composed of dead cells, more resistant to decay, generally darker and harder than the outer wood.
Grass is an example of a Niche. It is a particular role in the natural enviornment.