Imagine a population of giraffes- some with short necks, some with medium length
ID: 140315 • Letter: I
Question
Imagine a population of giraffes- some with short necks, some with medium length necks, and some with long necks. Over time trees get taller and it is helpful for giraffes to have longer necks that can reach the leaves.
Which of the following statements best describes what will happen under a model of evolution via NATURAL SELECTION (Darwin)?
Question 1 options:
Over time ALL of the giraffes will have long necks because natural selection will select long necks as favorable and cause all giraffes with long necks to survive. Those with mid-length or short necks will eventually die off.
There will be NO CHANGE in the population since evolution via natural selection is not designed to create populations with a perfect form (i.e., long necks).
Over time MORE of the giraffes will have longer necks, but there will still be some with mid-length and short necks.
Over time ALL of the giraffes will have long necks because they will work to lengthen their necks in each generation, passing those longer necks on to their kids.
Explanation / Answer
Over time all the giraffes will have long necks because natural selection will select long necks as favourable and cause all girrafes with long neck to survive.Those with mid length or short necks will eventually die off..(right option)
Explanation:Darwin model of evolution via natural selection explains the following
From these assumptions of Darwin we can get a conclusion that girrafes with long necks are considerably favourable and cause them to survive and over time the unfavourable traits vanish off from population.