Emetics
agents that cause vomiting. They may act directly on the gastrointestinal tract, bringing about emesis through local irritant effects, or indirectly, through their effects on the chemoreceptor trigger zone in the postremal area near the medulla.
Obtaining air outside an aquatic environment required species to acquire suitable adaptations, and this was the case of ..
Multicellular organisms evolved. The first ones were likely in the form of sponges. Multicellularity led to the evolutio..
Different pregnancy and birth control and contraception strategies are described. Read this tutorial to learn each of th..
Freshwater ecology focuses on the relations of aquatic organisms to their freshwater habitats. There are two forms of co..
A running water environment offers numerous microhabitats for many types of animals. Similar to plants, animals in lotic..
Mammals are a diverse group of organisms, where most of them develop their offspring within the uterus of the mother. Ov..
