A species of lizard can range in color from very light brown to very dark brown. It lives in a forest hiding among the dead leaves. One year, a fungus starts to grow over the dead leaves, creating a very powdery white coating. The light colored lizards can now blend in much better with the leaves than the dark lizards. _ What is the middle trait?

they had the law tat factories that produces smoke cannot be built near residential buildings.

building of proper sewage system was done to ensure that the waste is carried away from the humans so that they do not get diseases from it.

also they built water systems to provide water in those areas which are drought prone.

some scientists like gregory adcock agree with thorne's theory of regional continuity.

others, like chris stringer and ian tattersall, believe thorne's results may be contaminated or misinterpreted.

lichens that colonize bare rock secrete acids that break down the rock and start the soil-production process. so they expose rocks