Question

Giraffes use their extremely long necks to reach the leaves high up on acacia trees, which other animals cannot reach, giving them a food source for which they have few competitors. What can you conclude about natural selection from this observation Giraffe necks get longer over a lifetime of stretching, and their offspring inherit the longer necks of their parents. All giraffes are born with short necks and, eating acacia leaves causes them to stretch over a lifetime. Other animals will mimic the giraffe and grow longer necks. The giraffes with the longest necks survive and produce offspring

Answer 1

Some giraffes are heterozygous or homozygous for their long necks while others are homozygous recessive for short.

Answer 2

Answer:

The giraffes with the longest necks survive and produce offspring.

Explanation:

Given the following choices, D is correct:

A) Giraffe necks get longer over a lifetime of stretching, and their offspring inherit the longer necks of their parents.

B) All giraffes are born with short necks, and eating acacia leaves causes them to stretch over a lifetime.

C) Other animals will mimic the giraffe and grow longer necks.

D) The giraffes with the longest necks survive and produce offspring.