Spence (1937) had chimps pick one of two different sized covers and kohler (1939) had chickens peck at one of two light gray squares. results indicated that:__________

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Spence (1937) had chimps pick one of two different sized covers and kohler (1939) had chickens peck at one of two light gray squares. results indicated that -

The chickens instead chose a new, lighter square. They had mastered the concept of "lighter than" by theory of evaluation.

What is theory of evolution?

Anaximander of Miletus, a Greek philosopher who existed in the 500s B.C.E., proposed theories to explain how organisms change or evolve over time.

Some key features regarding the theory of evolution are-

  • Anaximander speculated that because human newborns are born helpless, humans really should have descended from another type of creature for whom the young might survive without assistance.
  • He deduced that those ancestors had to be fish, because fish hatch from eggs & begin living without assistance from their parents.
  • Based on this logic, he proposed that almost all life began inside the sea.
  • According to natural selection theory, organisms create more offspring than can survive in one‘s environment.
  • Those who are physically better equipped to survive, mature, and reproduce.
  • Those who lack such fitness, on the contrary hand, either fail to reach the reproductive age and produce low offspring than one‘s counterparts.
  • Natural selection is often summed up as "survival of the fittest," because the "fittest" organisms—those best adapted to their environment—are the ones who reproduce the most successfully and are most inclined to pass on one‘s traits to the next generation.

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