What is difference between the growth of  body and development of body? Who has more cells a younger or older who has bigger cells younger or smallerbiology characteristics of living organisms

Expert Answers
boblawrence eNotes educator| Certified Educator

Growth as a general term refers to an increase in size or number.

With respect to humans, however, physical growth means increase in size alone.

Human Development represents in increase in the ability of the body organs to function as intended.

Growth is a quantitative measure whereas development is qualitative.

The growth of an infant can be charted by measuring and recording size and weight over time.  The growth curve of an individual infant can be compared to the normal curve established for infants in general.

The development of an infant is measured in terms of the point in time when various developmental milestones are achieved.  Examples of milestones would include the ability to sit, crawl, climb, walk, talk, and so forth.

Human growth most generally is accomplished by increase in organ size without an increase in the number of component cells.  In fact, as the body ages, there is attrition of cells.  Organs of older patients mayactually contain fewer cells than those of younger patients.

Growth is a quantitative increase in organ and body size.  Development is the qualitative increase in the ability of organs and the body to function as intended.

This discussion does not address other connotations of “development” such as the enlargement of muscles due to bodybuilding.  Instead, the discussion centers on the terms “growth” and “development” as employed by pediatricians who assess their patients’ progress.