An area of land from which
water runs off into rivers,
lakes, streams, and oceans

Amale bird-of-paradise uses a dance to attract mates in which it flaps its tail feathers on the ground and jumps around a potential female mate. a different male bird-of-paradise does a similar dance but it jumps around the female in the opposite direction. the female bird is only attracted to one style of dance, in one direction. this is an example of speciation.

Witch type of microscope is used to view very small cell components like proteins and dna?

Climate like that in the sahara desert have the fastest rates of weathering