Single celled organisms such as amoebas, especially those that live in fresh water, continually gain water from their surrounding environment by osmosis. This water is pumped into a contractile vacuole which fills with fluid and periodically fuses with the cell membrane, releasing its contents to the exterior. Thus the amount of water actively transported out of the cell is equal to the amount of water entering the cell due to osmosis and there are no variations in the tonicity of the cell. This is homeostasis at a simple level. Without the contractile vacuole, the amoeba would continue to absorb water until its cytoplasmic contents were diluted to such an extent that metabolism no longer occurred and it would die.
The stratified squamous epithelium protects the pharynx from food
Answer:
the decrease in biodiversity may cause a significant reduction in productivity of the ecosystem. The loss of biodiversity means genetic variation are lost and overall genetic pool reduces.
Explanation:
Biodiversity Hotspots of the World
Eastern Afro-Montane.
The Guinean forests of Western Africa.
Horn of Africa.
Madagascar and the Indian Ocean Islands.
Maputoland, Podoland, Albany hotspot.
Succulent Karou.
East Malanesian islands.
South Africa's Cape floristic hotspot.
Answer:
SAME!
Explanation:
XD they look soooo funny XD