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.
Molecule, organelle, cell, tissue, organ, organ system, organism, community, population, ecosystem, biosphere
DNA replication occurs in the synthesis stage and is followed by the gap 2 stage
The peripheral nervous system refers to parts of the nervous system outside the brain and spinal cord. It includes the cranial nerves, spinal nerves and their roots and branches, peripheral nerves, and neuromuscular junctions.
politics because politics is one of the major things
