Immature dragonflies have six spindly legs, and a body that is only a few times longer than it is wide. They have two fairly big eyes. Some of their mouthparts are modified to shoot forward and grab prey.
An organelle is a tiny cellular structure that performs specific functions within a cell. Organelles are embedded within the cytoplasm of eukaryotic and prokaryotic cells. In the more complex eukaryotic cells, organelles are often enclosed by their own membrane. Analogous to the body's internal organs, organelles are specialized and perform valuable functions necessary for normal cellular operation.
Organelles are structures in cells that perform a function for the cell. For instance, mitochondria, which are found in both plant and animal cells, are for respiration and the production of ATP, an energy carrying chemical. Other organelles are chloroplasts which carry out photosynthesis. These, of course, are only found in plant cells. There are many others, each with a specific function.