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.
A is the active site and C is the enzyme
Biogenesis, the fir tree began life when fertilization occurred to produce a singlee cell.
Answer:
Coal
Explanation:
it's expells the most CO2 into the atmosphere
I believe it is "arctic predators or winter hunters" they all hunt in the snow and all of them are predator which mean they eat all different types of small animals like mice.
