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.
Model organisms are a small group of research organisms that serve as a proxy for understanding the biology of humans. Examples include yeast, fruit flies, worms, zebrafish, and mice. Many aspects of these organismsâ biology are similar to ours, and much is already known about their genetic makeup. For these and other reasons, studying model organisms helps scientists learn more about human health. Why are model organisms useful for studying diseases? Drosophila.