Their source of carbon. Autotrophs obtain their carbon from inorganic sources such as from atmospheric carbon dioxide. Examples of autotrophs include plants, and euglena ( a protist).
Heterotrophs on the other hand, obtain their carbon from organic sources such as other organisms. Examples of heterotrophs include all secondary consumers, and decomposers.
Heat wave is a prolonged period of abnormally high temperatures, usually in association with humid weather.
Secrete prolactin<span> (PRL), which initiates milk production in the mammary glands. Secrete adrenocorticotropic hormone (</span>ACTH), which stimulates the adrenal cortex to secrete glucocorticoids (like cortisol). Also secretes melanocyte-stimulating hormone (MSH<span>).</span>
