It means that they are not like pre-set blueprints. They react differently according to changes in the environment.<span />
B.
distance from pitcher's mound to home plate = 60 feet; time for baseball to go from pitcher's mound to home plate = 0.4 seconds
Answer: A is the correct answer. Our scientific knowledge has come from all places around the word. From north africa to the middle east, to india and china.
The only reason that we are so far ahead is because we have interacted with other peoples who have skills and knowledge that we didnt have.
Hope this helps.
A good example of environmental pressure could be the demand for agriculture land is destroying native habitats.
The Retina has the light sensitive cones (and lack of color sensitive cones can also result in color blindness)
