Ribose is a simple sugar at the center of adenosine triphosphate (ATP). It's the same sugar that makes up RNA.
I’m not sure sorry! But hope someone answers!
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 .
This is baby stuff tbh. But it is A. You need water to live. Food to live. Air obviously and a shelter
Answer:
Main land, peninsula, and islands
Explanation:
