The key lesson learned from what has happened on the Easter Island is that the humans should live in balance with the nature and to use the natural resources responsibly. The Easter Island was inhabited by people until relatively recently, and they lived on the island for some time, but there's nothing left from them apart from numerous large heads made out of stone. The people that lived on the island died, and that happened because of their irresponsible way of using the natural resources and destroying the environment. The people that lived on the Easter Island managed to use and destroy all natural resources that were enabling their survival there, putting themselves in a situation where they didn't had anything to eat, nor having material to build boats and move on another place. They were tuck there, isolated, started to kill and eat each other until the last one of them was left and died. This is a very nice example and lesson for the humans in the present that they should be very careful with the nature and the natural resources because there's always a line that after it is crossed there's no coming back.
Answer:
b. hibernation to lower metabolism in the winter
Explanation:
Tundra, besides the one I live in apparently, are very, very dry because of the cold. This means that it may be helpful to hibernate for the part of the year where it is even too cold for plants and other animals.
Chewing- Breaking down food as you chew.
Swallowing- Moving the food towards your stomach.
Stomach Digestion- Empties the food into the small intestine.
Small Intestine Digestion- Keeps the food moving into the large intestine.
Absorption- Broken down into the body and absorbed into the bloodstream.
Waste Elimination- Waste leaves your body through bowels.
Answer:
Hemoglobin, or haemoglobin, abbreviated Hb or Hgb, is the iron-containing oxygen-transport metalloprotein in the red blood cells of almost all vertebrates as well as the tissues of some invertebrates. Hemoglobin in blood carries oxygen from the lungs or gills to the rest of the body.
