GENETICS AND EVOLUTION
EVOLUTION
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Natural selection happens so quickly, it is difficult to see.
|
|
|
Natural selection is an internal process that can not be outwardly observed.
|
|
|
Natural selection occurs over so many generations, it is impossible to see changes occur.
|
|
|
Natural selection is a process that occurs randomly, and it is unlikely that a human would be present when it occurs.
|
Detailed explanation-1: -He noticed that each finch species had a different type of beak, depending on the food available on its island. The finches that ate large nuts had strong beaks for breaking the nuts open. Finches that ate small nuts and seeds had beaks for cracking nuts and seeds.
Detailed explanation-2: -However, the Galapagos finches helped Darwin solidify his idea of natural selection. The favorable adaptations of Darwin’s Finches’ beaks were selected for over generations until they all branched out to make new species. These birds, although nearly identical in all other ways to mainland finches, had different beaks.
Detailed explanation-3: -Darwin’s theory of evolution by natural selection states that living things with beneficial traits produce more offspring than others do. This produces changes in the traits of living things over time. During his voyage on the Beagle, Darwin made many observations that helped him develop his theory of evolution.
Detailed explanation-4: -A beak at evolution Darwin elaborated on this idea when he published his intellectual bombshell, the “Origin of Species, ” some 25 years later in 1859. He speculated that birds, resembling starlings, came to the Galapagos Islands by wind. Evolution took over and different groups developed different diets.