Difference between dermis and sub cutaneous of skin

Apart of an ecosystem that can restrict the growth of a population is referred to as

Draw the farm's ppf for corn and beef. draw a point that shows an inefficient combination of corn and beef. label ita. draw a point that shows an unattainable combination of corn and beef. label itb. draw a point that shows an efficient combination of corn and beef. label itc.

The diagram shows a chicken embryo and a human embryo