Arthropods: wide variety of species Arthropod classes INSECTA - Insects have terrestrial life. - The body is divided into head, chest and abdomen. - Hexapods: have six legs. - They have a pair of antennas. - They have tracheal breathing. Examples of insects: bees, flies, mosquitoes, cockroaches, bed bugs, butterflies, dragonflies and wasps.

Fungi: simple life form What they are - biological definition In nature there are different types of fungi. We can say that they are a fairly simple life form. Regarding differences, there are those that are extremely harmful to human health, causing numerous illnesses and even intoxication.

Mutualism between cattle and bird: benefits for both What it is - definition Mutualism is an interaction (relationship) between two species, where benefits for both occur. That is, by living together, the two species gain in some respect. In mutualism, species may or may not live together, depending on the type of relationship.

Bibliographic indication for the study of birds Books about birds (bibliography) Bibliography (book indication about birds): Birds of Brazil - Pantanal & Cerrado Author: Argel, Martha; Ridgely, Robert S .; Tudor, Guy; John A. Gwynne Publisher: Catavento Aves of Brazil - Practical Guide Author: Bini, Etson Publisher: Man Bird Breeding Poultry Author: MERCIA, LEONARD S.

Ecology: Three major branches of study Introduction The study of ecology can be divided into several branches (areas). The three main branches of this science are: Autoecology, Synecology and Demoecology. The division of ecology into these three major branches of study was made by botanist Carl Schroter in the early twentieth century.

Hypoglycemia: Below Normal Blood Glucose Level What is Hypoglycemia is a disorder characterized by below-normal blood glucose levels. The characteristic symptoms are weakness, tremors, anxiety and pallor. Patients may also show personality changes and appear intoxicated.