Answer:
B) There is an increase in the number of giraffes with long necks in areas of Africa where low-growing trees have died
Explanation:
The directional selection is one of the ways of the natural selection in which the natural selection selects or favours the most extreme trait of the species and the extreme trait show higher fitness than the normal or average trait.
In the given question, the case of Giraffe necks shows directional selection as the normal length of the neck is not favoured by the environment but the extreme trait that is long neck is favoured by the environment and the selection shifted to that level.
Thus, Option-B is the correct answer.
Answer:
Should be with the wind as if it was against the wind it would be pushed back
Explanation:
Giant squid can be found In the North Atlantic ocean.
Arrows coming from one organism and pointing to another shows the flow of energy.
Plant------>Mouse
The mouse is getting energy from the plant.
