33. why is it possible for the earth to be at aphelion during the winter in the northern hermisphere? seasons are based on the proximately of the earth to the sun. seasons are based on the tilt of the earth seasons are based on how close earth is to the sun. none of the above

Which of the following observations darwin shape his concept of descent with modification? a) species diversity declines farther from the equator.b) fewer species live on islands than on the nearest continents.c) birds can be found on islands located farther from the mainland than the birdsê¹ maximum nonstop flightdistance.d) south american temperate plants are more similar to the tropical plants of south america than to thetemperate plants of europe.e) earthquakes reshape life by causing mass extinctions.