a group of similar cells that perform the same function


group of tissues that work closely together to perform a specific function for the body

organ system

A group of organs that work together in performing vital body functions.

spongy cells

cells located in the middle of a plants leaves that store energy and are loosely arranged to allow gas exchange


a layer of tissue surrounding an organism, to protect it from the environment


cells directly below the epidermis of a leaf that photosynthesize, creating energy for the plant


a vessel that holds fluid to transport materials through an organism

vascular tissue

The internal tissue that is made up of structures, including veins, for transporting materials throughout an organism


vascular tissue that carries water upward from the roots to every part of a plant


vascular tissue that transports glucose and nutrients (sap) throughout a plant


the layer of cells in a plant that produces new phloem and xylem tissue

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