Q.
The diagram shows a summary of Darwin's theory of natural selection.
Which statements should be placed in boxes $1, 2$ and $3$?
There is a struggle for existence
Variation is shown in all
populations
Individuals show great reproductive capacity
a
1
2
3
b
2
1
3
c
2
3
1
d
3
1
2
| There is a struggle for existence | Variation is shown in all populations | Individuals show great reproductive capacity | |
|---|---|---|---|
| a | 1 | 2 | 3 |
| b | 2 | 1 | 3 |
| c | 2 | 3 | 1 |
| d | 3 | 1 | 2 |
Evolution
Solution: