Friday, June 25, 2010

Insect


An insect is a class within arthropods, that have a chitinous exoskeleton, a three-part body (head,thorax and abdomen), three pairs of jointed legs, compound eyes, and two antennae. As you can see, all bees fit into this category.

Autotroph


This organism is an autotroph because it produces complex organic compounds from simple organic molecules using energy from light (by photosynthesis) or inorganic chemical reactions (chemosynthesis). They are able to make their own food, unlike organisms that are heterotrophs.

Anther and Filament of Stamen


The stamen is the male reproductive organ of a flower. Each stamen generally has a stalk called the filament. At the top of the filament is the anther and pollen sacs. In the center of this organism is the stamen where the reproductive proccess of pollination takes place.

Amylase


In this mouth, amylase is present. Amylase is an enzyme that breaks down into sugar. It is present in human saliva, where it begins the chemical process of digestion. Plants and some bacteria also produce this enzyme.

Phloem


The living tissue that carries organic nutrients, particularly sucrose, to all parts of the plant is the phloem. This large leaf is an example of the this tissue, phloem, transporting soluble organic material throughout the organism.

Abscisic Acid


An abscisic acid is a plant hormone and is an important part in plant responses to enviromental stress and plant pathogens. It is synthesized in all plant parts including roots, flowers, leaves, and stems.

Echinoderms


Echinoderms are a phylum of marine animals. This starfish is an echinoderm due to its five-sided and bilateral symmetry. It is arranged around a central axis.