The answer is the detection
of heat and touch. The integumentary system consists of the skin, nails, glands,
hairs, and nerves. The nerves are responsible for sensing stimuli including pressure, heat, and touch. Another
example of its function is acting as a physical
barrier against harmful microorganisms and excretion.
Density-dependent limiting factors cause a population's per capita growth rate to change—typically, to drop—with increasing population density
Geologic time is divided into units based upon types fossils found in each area .
I hope that's help !