Question 1
Paper 2Easy6 marksResearchers record the percentage of beetles in a population with an inherited pale-colour characteristic.
| Generation | Beetles with pale colour / % |
|---|---|
| 1 | 32 |
| 5 | 47 |
One adult beetle develops greater leg-muscle mass through repeated exercise. This change is not passed to its offspring.
(a)[2]
Calculate the increase in the percentage of beetles with pale colour from generation 1 to generation 5, in percentage points.
(b)[2]
State what is meant by evolution.
(c)[2]
Explain why the change in leg-muscle mass in the adult beetle does not count as evolution.