Question

natural selection: storyboard
complete the descriptions to show how natural selection led to long necked giraffes
type here

Explanation:

In the first panel, giraffes have varying neck - lengths. In the second, food availability is higher on trees. Giraffes with short necks, like "Shorty", struggle to reach food and don't survive (third panel). Giraffes with long necks can access food, survive, and reproduce (fourth panel). Over many generations (last panel), the trait of long necks becomes more prevalent in the population due to natural selection.

Answer:

1. Giraffes in a population have different neck lengths due to genetic variation.
2. The main food source is high up in trees. Short - necked giraffes cannot reach the food easily.
3. Short - necked giraffes, like "Shorty", die because they cannot get enough food.
4. Long - necked giraffes can reach the food, survive, and mate. They pass on the long - neck trait to their offspring.
5. After many generations, most giraffes in the population have long necks as the long - neck trait has been favored by natural selection.