Bilateral symmetry

BILATERAL SYMMETRY

Many animals have a body that is symmetrical, meaning that it could be divided into matching halves by drawing a line down the center. This sand dollar is an example of bilateral symmetry.

STIGMA AND STYLE OF CARPEL

The stigma is the sticky, receptive tip of a carpel, or of several fused carpels. The stigma receives pollen at pollenation and it is on the stigma that the pollen grain germinates. Style connects the stigma to the ovary. This flower respresents this.

C3 PLANT

A plant that utilizes the C3 carbon fixation pathway as the sole mechanism to convert carbon dioxide into an organic compound. About 85% of plant species are C3 plants. Rice is an example.

GIBBERELLINS

Gibberellins are a group of diterprnoid acids that function as plant growth regulators, influencing a range of development processess in higher plants including stem elongation, germination, dormancy, flowers, sex expression, enzyme induction and leaf and fruit senescene. Grapes are an example.

PREDATION

A relationship between two spieces of animals in a community, in which one (the predator) hunts, kills, and eats the other (the prey).

This snake is an example of the predator.

RADIAL SYMMETRY

Symmetrical arrangement of parts of an organism around a single main axis, so that the organism can be divided into similar halves by any plane that contains the main axis This starfish is an example.

HOMOLOGUS STRUCTURE

Structures derived from a common ancestor or same evolutionary or development origin. The dogs leg/paw and the human arm/hand are examples.

MERISTEM

Region of cells capable of division and growth in plants.

EUBACTERIA

A large group of bacteria having rigid cell walls, motile types have flagella. Means true bacteria which basically means that all bacteria are eubacteria except of the archaebacteria. Yougurt is an example of eubacteria.

ENDOTHERM

So called warm blooded animals, that is, those that maintain a constant body temperature independent of the environment. The endotherms primarily include the birds and mammals.

PARENCHYMA CELLS

Are usually depicted as the typical plant cell because they are not very specialized. These cells synthesize and store organic products in the plant. Most of the plant's metabolism takes place in these cells. This floral root system is an example.

OVARY

Enlarged basal portion of th pistil, the female organ of a flower. The ovary contains ovules which develop into seeds upon fertilization. It will mature into a fruit, either dry and parchmentlike or fleshy, enclosing the seeds. This apple is an example.

ECTOTHERM

An organism that regulates it's body temperature largely with exchanging heat with it's surroundings. These fish are an example.

CAM PLANT

Any plant that undergoes a form of photosynthesis known as crassulacean acid metabolism, in which carbon dioxide is taken up only at night. This cactus is an example.

HYDROPHILIC