Dugesia sp: example of turbellaria What they are - biological definition Also known as planarians, turbellaria (Turbellaria class) are free-living flatworm worms. There are about 3,000 species of turbellars. Habitat Turbellarians live in freshwater (rivers and lakes), seas (saltwater) and also in wetland soil locations.
Amino Acid: Molecular Structure What It Is (Definition) Protein is a macromolecule composed basically of linear chains of amino acids. There are simple proteins, composed only of amino acids and their derivatives. And also the conjugated proteins (heteroproteins), which are formed by polypeptide chains and prosthetic group (components of non-protein nature).
Bibliographic indication for the study of Human Nutrition Bibliography (indication of nutrition books): Nutrition - From Pregnancy to Aging Author: Vitolo, Márcia Regina Publisher: Rubio Food Pyramid - Basic Fundamentals of Nutrition Author: Philippi, Sonia Tucunduva Publisher: Manole Physiology Exercise - Energy, Nutrition and Human Performance Author: Macardle, William D.
Marine Manatee Information and Key Features: - Marine Manatee is an aquatic mammal that can be found in salty (seas and oceans) or sweet (rivers) waters. Sea Manatee - The saltwater species are the sea manatee and the African manatee. - Marine manatees inhabit mainly the waters of the Atlantic Ocean, near the coasts of the United States, Mexico, Central America (Caribbean Islands) and the northern coast of Brazil.
Tuberculosis-causing bacteria Chromosome (bacterial genome) Composed of DNA that forms a single circular double helix chain. It has folds, but the protective layer is absent. Bacterial chromosomes are located in the cytoplasm. Bacterial Flagella These thin, elongated appendages are composed of a protein called flagellin.
Nutrient uptake by plants occurs through the roots. Introduction (macronutrients, micronutrients, and soil) Like us, plants need nutrients. These can be classified as macronutrients (required more) and micronutrients (required less). Macronutrients include hydrogen, carbon and oxygen, which plants obtain through the photosynthetic process.