LIFE SCIENCE

Detailed explanation-1: -Darwin believed that giraffes with longer necks had a higher survival rate, due to ease of feeding and reproduction, and this is the way giraffes evolved. Lamarck believed that over time, shorter giraffes were starved out and giraffes with longer necks survived to reproduce.

Detailed explanation-2: -According to Darwin’s theory, giraffes that happened to have slightly longer necks and limbs would have a better chance of securing food and thus be able to have more offspring–the “select” who survive. Conversely, in Lamarck’s view, a structure or organ would shrink or disappear if used less or not at all.

Detailed explanation-3: -Lamarck believed that the long necks of giraffes evolved as generations of giraffes reached for ever higher leaves. Lamarck was struck by the similarities of many of the animals he studied, and was impressed too by the burgeoning fossil record. It led him to argue that life was not fixed.

Detailed explanation-4: -LaMarck believed in acquired characteristics, while Darwin believed in evolution by natural selection. Which is an accurate match between the author, and how he would explain the long neck of giraffes? LaMarck believed that giraffes were created with long necks and remained unchanged from their original design.

Detailed explanation-5: -Charles Darwin held up giraffes as a prime example of natural selection, his theory that’s often summarized as “survival of the fittest.” Giraffes with comparably longer necks could reach food high up in trees, which gave them an advantage over other animals and members of their own species with shorter necks.