Urinary System What the body does not assimilate What the body does not assimilate, that is, materials that are useless or harmful to its functioning, must be eliminated. Observe, for 24 hours, everything that your body eliminates - the waste - will certainly appear: feces, urine, sweat… Are the materials that are unnecessary to the functioning of your body and expelled by it the same?

The Cerrado is the oldest Brazilian biome. It is said to be about 65 million years old. It is so old that 70% of its biomass is in the earth. That is why it is said to be a “forest upside down”. Therefore, for some experts, the Cerrado does not allow any revitalization.

Giardiasis is a more frequent intestinal parasitosis in children than in adults and whose etiological agent is Giardia lamblia. This flagellated protozoan has a higher incidence in temperate climates. The genus Giardia belongs to the first human intestinal protozoan to be known. His description is attributed to Leeuwenhoek who noticed 'tiny moving animals' in his own feces.

Birds and mammals are the only homeotherms on earth today and the only ones to have mammary glands. The ability to maintain a constant and high body temperature was the main adaptive factor of the representatives of this group to virtually any terrestrial environment. Many mammals have returned to the aquatic environment (whales, seals, dolphins, manatees) and others have adapted to flight (bat) and share the air with birds and insects.

As stated above, if two solutions remain separated by a semipermeable membrane, water flows from the most dilute to the most concentrated solution. This diffusion of the solvent is called osmosis. When a plant cell is in a hypotonic environment, it absorbs water. Unlike the animal cell, it does not rupture because it is lined with the cell wall or cellulosic membrane, which is fully permeable but has limited elasticity, restricting the increase in cell volume.

In the case of the human species, where experiments with directed breeding cannot be performed, the determination of the inheritance pattern of traits depends on a survey of the family history in which certain traits appear. This allows the geneticist to know whether or not a given trait is inherited and how it is inherited.