Growth

Question 1

What does growth mean?

Answer 1

An increase in size and mass

Question 2

What are the 3 methods to measure growth?

Answer 2

Length

Wet mass

Dry mass

Question 3

What are the advantages and disadvantages of measuring length?

Answer 3

Easy to measure

Isn’t specific- doesn’t tell the change in:

Width
Mass
Diameter

Question 4

What are the advantages and disadvantages of measuring the wet mass?

Answer 4

Easy to measure

It can change very easily as you are simply measuring the organism -

Mass can change when it rains (some organisms can absorb water when it rains , therefore increases mass)

A full bladder can increase mass

An empty stomach can decrease mass

Question 5

What are the advantages and disadvantages of measuring the dry mass?

Answer 5

The mass is not affected if the organism eats, had a full bladder, absorbs water etc.

The organism had to be dead to measure the dry mass-

Therefore cannot really work for humans (can be okay for grass)

Question 6

What are the 5 main faces of growth for a human?

Answer 6

1. Infancy - rapid growth for 2 years
2. Childhood- steady growth
3. Adolescence - rapid growth, puberty and development & growth is complete
4. Maturity- growth stops
5. Old age - between age 65, death

Question 7

What can be a big survival advantage for babies?

Answer 7

A rapid growth of a large and well-developed brain

Question 8

Do all different parts of the body grow at the same rate?

Answer 8

No.

They grow at different paces,

For example, for a baby, the brain will grow the fastest and it is a great survival advantage.