Homeostasis is a state of stable internal environment that is mainteined by an organism. Maintaining the stable temperature (thermoregulation) is one of the examples of maintening the homeostasis and it is achieved by the skin in humans. The skin control of the temperature:
1.sweating- the sweat glands of the dermis secrete sweat that lower the temperature via evaporation,
2. skin circulation-vasoconstriction and vasodilation of the blood vessels inside the skin regulates the temperature. For example, when the body temperature is high, the blood vessels dilate, allowing heat to be released through the surface of the skin,
3. insulation by the subcutaneous layer of the skin which is made of fat cells and fibrous tissue
4.piloerection.
There are 4 ways of the heat loss from the skin:
1.radiation
2.conduction
3.convection
4.evaporation
Sinkholes form when limestone is slowly dissolved by acidic groundwater over geologic time. ... This process of dissolution can create large cavities in limestone. A sinkhole forms when the roof of a cavity in the limestone collapses and creates a depression at the land surface.
Answer:
Verify if the aunt has the right to consent for the child, then proceed.
Explanation:
It is very important to know if the aunt has the consent of the child's parents to make a medical decision. This is because the child is a minor and cannot make a decision about whether or not to accept the procedure. Then a responsible adult of the child must sign documents that make clear the knowledge of the implications of the procedure.
Apes are considered hominids. Didn't you mean hominids?
Answer:
Most polymers, including poly(ethene) and poly(propene) are not biodegradable . This means that microorganisms cannot break them down, so they: cause a litter problem if disposed of carelessly. last for many years in landfill sites.
