Exoskeletons contain rigid and resistant components that fulfill a set of functional roles including protection, excretion, sensing, support, and feeding.
Hey you're epithelial tissue is showing! An epithelial tissue is made up of cells closely packed and ranged in one or more layers. This tissue is specialised to form the covering or lining of all internal and external body surfaces.
An ectotherm is an organism that control body temperature through external means. As a result, organism are dependent on enviromental heat sources. Ectotherm organism are commalny known as poikilotherm.
A cuticle is any variety of tough but flexible, non-mineral outer coverings of an organism, or parts of an organism, that provide protection. A cuticle layer of a plant is the waxy layer of that plant.
An autotroph is an organism that produces complex organic compounds from simple inorganic molecules using energy from light . A tree is an autotroph because it gets its energy from the sunlight.