Exploring Different Organisms and Their Size
Different organisms are of different sizes. If I take an example of
two organisms such as an amoeba, which is a single celled organism and
an elephant, which is a multicellular organism I can see that they are
obviously of different sizes.
[IMAGE]
AMOEBA
Amoeba
[IMAGE]
ELEPHANT
Elephant
Since an amoeba is small it has a large surface area compared to its
volume. Since an elephant is large its surface area is small in
comparison with its volume.
As can be seen below if one increases the surface area of an object,
the total volume increases but the surface area: volume ratio
decreases.
3cm
[IMAGE]
2cm
[IMAGE] 1cm
[IMAGE]
Total SA= 6
24 54
Total Vol= 1
8 27
SA:Vol= 6:1
3:1 2:1