Question 1 · 10 marks · 134 words written
Comment on the following in about 150 words each: 10x5=
Opening · a definition
None written.
Body · points and prose
Growth :- As per Malina, growth is systematic increase in the body size. It is a continuous process.
Growth Curve :- It shows the rate of change of growth across the life span.
* Axis Y: Body Growth (Height) per year
* Axis X: age (years)
* Plot: Curve rising slowly, then steep slope labeled 'Juvenile growth spurt' (with arrow to slope), then plateau, then steep slope labeled 'Adolescent growth spurt' (with arrow to slope), then flattening out.
* X-axis markers: 8, 10, 14, 16
figure 1: Growth curve
Features of Growth curve
- It contains two growth spurt
- Steady growth till age of 8.
- Growth curve completes at age of 18 in female & 21 years in male.
- Growth curve shows the growth pattern.
Factors impacting growth curve
- Nutritional stress :- Malnutrition retards the growth. e.g. Saharia tribe - less growth high stunting cases.
- Psychological stress :- It also retards human growth. e.g. Widdowson - Chicago orphanage show direct correlation between height and nature of sister in charge.
Close · a summary
Thus, growth curve is very important concept in understanding human population growth.