90% of abortions in Canada are performed during the first 12 weeks of pregnancy, and just over 9% of abortions take place between 12 and 20 weeks of gestation.A mere 0.4% of abortions take place after 20 weeks of gestation. These are considered late term abortions.0% of abortions in Canada are performed during the first 12 weeks of pregnancy, and just over 9% of abortions take place between 12 and 20 weeks of gestation.
Flag for inappropriate content. Human is a complex organisms because humans are made up of trillion of cell and a lot of system and organ .Some of the major systems are blood circulatory systems, the skeletal system, the digestive system, the nervous system and the respiratory system. Most of which are grouped into organ systems that have specialised functions.
Unicellular organisms are known as single-celled organisms. They are made up of a single cell. Organisms like the amoeba, Paramecium are single-celled organisms, they are the oldest forms of life, they existed about 3.8 million years ago. Bacteria, archaea, protozoa, unicellular algae and unicellular fungi are the main groups of unicellular organisms. The single-cell regulates all the activity of the organism. Unicellular organisms are small are mostly invisible to the naked eye. There are two general categories of unicellular organisms: prokaryotic and eukaryotic organisms. Prokaryotic unicellular organisms are protists and some fungi. Some of these unicellular prokaryotes live in colonies. They live together and all the cells of the colony is the same. All the process of life is carried out in each cell in order for the cell to survive. Simplest multicellular organisms are made of cells that dependent on each other for their survival. Most of the multicellular organism are microscopic and are known as microscopic organisms. Unicellular organisms vary in size.