Answer:the answer is B hope this help
Explanation:
The appropriate response is the concept of conservation. Conservation alludes to an intelligent deduction capacity which, as indicated by the clinician Jean Piaget, is absent in youngsters amid the preoperational phase of their improvement at ages 2– 7, yet creates in the solid operational stage at ages 7– 11.
Well I think is physics right? Like bones
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 .
