4. a. (2 pts) There is a herd of elephants that has trunks that vary in length f

Question

4. a. (2 pts) There is a herd of elephants that has trunks that vary in length from 4 to 7 feet. One of their primary sources offood is leaves on trees and bushes. Only elephants with trunks longer than 6 feet in length can reach the leaves in trees. Put the following events in chronological order to describe how elephants would evolve by natural selection. A. Subsequent generations of elephants all have trunks longer than 6 feet B. Leaves on bushes are eaten by elephants and other animals Elephants with shorter trunks (4-6 cannot find enough food; elephants with long trunks 6 feet) find other food in the trees to eat Order: First Second Third b. (3 pts) Explain why the following statement is not true, being sure to focus on the underlined portion: "Subsequent generations of elephants had trunks longer than 6 feet pecause all elephants in the original population had to grow long trunks in order to survive.

Explanation / Answer

Answer:- 2

(First)B. Leaves on bushes are eaten by elephants and other animals

(Second)C. Elephants with shorter trunks (4-6 feet) cannot find enough food; Elephants with long trunks (>6 feet find other food in the trees to eat.

(Third) A. Subsequent generations of elephants all have trunks longer than 6 feet.

3.} Evolution of elephant’s long trunk helped them to reach up to large size of trees and there leaves. That will be available for those animals have long neck i.e. giraffes. In tropical and subtropical zones the leaves found at higher level at around 2 m (6.6 ft) from the ground level. So the long trunk helps them to reach that height. It will provide them extra option of food. Hence that will effect on the elephant survival.

Related Questions

Navigate

• Browse (All)
• Browse 4
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.