Unicellular organisms excrete waste by a contractile vacuole. A vacuole is membrane-enveloped organelle in a cell that is found in lots of microorganism. It expands, filling with water then contracts, removing all of its contents to the exterior of the cell.
Answer:
the answer is D: the the preservation of species
Explanation:
Answer: Global warming is happening because the greenhouse gases are becoming more thicker which makes more of the suns radiation (heat) stay in the earth; as a result, this is increasing the earth's temperature.
The subject is geography :)
Explanation:
Answer:
Latitude is the distance north or south of the equator. Altitude is the height of an object above sea level.
Graphs that are clearly labeled are much less likely to be misread or misinterpreted.
