The first keeps were rectangular in shape but later ones were often circular. The Stone Keep would be surrounded by a thick stone wall containing turrets for lookouts. The Bailey was now the area outside the keep but within the outer walls and shelter for animals or craft workshops might be built against the walls.
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"Variation allows some individuals to survive better than others and so evolve over time" is the reason this <span>this idea important to his theory of evolution. The correct option among all the options that are given in the question is the first option or option "A". I hope the answer comes to your help.</span>
Answer:
Adaptations are inheritable characteristics that increase an organism's ability to survive and reproduce in an environment. Adaptations can help an organism find food and water, protect itself, or manage in extreme environments.
Explanation: i hope this helps
