I think it is Authority hope this helps
Endocrine gland - a group of cells that secretes substances into the blood or directly into an organ.
Differ from exocrine glands, endocrine glands have no ducts and secrete products (hormones) directly into blood.
Hormone - a substance produced by cells that helps specific groups of cells to perform specific functions. It is a product of endocrine gland which functions as chemical messengers to stimulate other cells.
Duct – a channel or tube that conveys a substance. It is part of the exocrine glands (such as salivary glands) which makes contact with surface .
Variables is likely the correct answer.
Saturated fats are bonded together by single bonds, are found in animals, and are solid at room temperature; unsaturated fats are bonded together by double bonds that create a “kink”/bend, are found in plants, and are liquid or oil at room temperature.
