What kind of inheritance does skin colour represent?
a. sex-linked (x-linked)
b. multiple alleles
c. systemic
d. polygenic

Answer;

Lakes are smaller and more shallow than ponds.

Explanation;

-Lakes are formed by remnants of glaciers, blocked rivers, and rivers that fill natural basins.

-In lakes the water is standing, not flowing. Though currents can be swift as waters enter and leave lakes, in general, lakes move slowly because they have been blocked by beaver dams, humans, natural rock cavities, etc.

-The water in lakes is layered (stratified) according to temperature, oxygen and life.The bottoms of lakes are covered with mud that includes the decaying bodies of dead plants and other organisms.