NBC AP Biology 10-11

While visiting the San Diego Zoo, I took this picture of a fern, which is known as a frond. A frond is a plant containing large leaves in s...

Auxin is a plant hormone produced in the stem tip that promotes cell elongation. This shows a tip of a plant that is in my house. Auxin hav...

It's hard to tell from the lighting in my kitchen but in this old jar of grape jelly there is mold growing. Because mold is a bacteria ...

My unpainted and dirty fingernails are an example of keratin. Keratin is a family of fibrous structural proteins. It is also the key struct...

A woody stem is the stem of the plant that has been growing for more then two years. After two years of growing a plants stem thickens to a...

AP Biology Collection 2 Location: Behind my neighborhood in the area between Greene and Cross Creek I am using this camouflaging insect for ...