Adoption

Ferns and their relatives are vascular plants, meaning they have xylem and phloem tissues. Because of the presence of va..

ATP is the energy source that is typically used by an organism in its daily activities. The name is based on its structu..

Dinosaurs represented a major turn in the evolutionary development of organisms on Earth. The first dinosaurs were presu..

Physiology is the study of how living organisms function. Thus, human physiology deals specifically with the physiologic..

Hormones are essential in the regulation of the activity of the various biological systems of the human body. The ineffi..

Freshwater ecology focuses on the relations of aquatic organisms to their freshwater habitats. There are two forms of co..

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