Muscular Tissue The Muscle tissue is soft and it makes different types of muscles in animals, which gives the ability of muscles to contract. Muscular tissues are also referred to as myopropulsive tissue. Muscular tissues are formed during embryonic development by the process of myogenesis. The muscle tissues are mesodermal Read more…
Connective tissues The term connective tissue was introduced in 1830 by Johannes Peter Muller. The tissue was already recognized as a distinct class in the 18th century Connective tissues are the most abundant and widely distributed tissues of complex animals. These are mesodermal in origin. They perform the special function Read more…
Epithelial tissue The term “epithelium” was introduced by Frederic Ruysch in 1703. Epithelium tissue is made up of one or more layers of cells that are compactly arranged with a little intracellular matrix. Important features of Epithelial tissue: The Epithelial tissues line the external surfaces of organs and blood vessels Read more…
Classification of Animal Tissues Animal Tissues In multicellular animals, a group of similar cells along with intercellular substances perform a specific function. Such an organization is called tissue. The tissues arise from the undifferentiated cells of Primary Germ Layers i.e. Ectoderm, Mesoderm, and Endoderm. Features of tissues: These tissues form Read more…
Tiger Reserves in India Project Tiger Important facts about Project Tiger: Project Tiger was launched by the Government of India in the year 1973 to save the endangered species of tiger in the country. Starting from nine (9) reserves in 1973, the number is grown up to fifty-four (54). There Read more…
World Environment Day In 1972, the UN General Assembly designated 5 June as World Environment Day (WED). The first celebration, under the slogan “Only One Earth” took place in 1974. In the following years, WED has developed as a platform to raise awareness of the problems facing our environment such Read more…
Phylum-Hemichordata These are recently added as a phylum under non-chordates, earlier these were considered as a sub-phylum under the phylum chordates. They possess a rudimentary structure in the collar region known as a stomochord, which is similar to a notochord in structure. The hemichordates are marine deuterostome animals, generally considered Read more…
Phylum-Echinodermata The members of Phylum Echinodermata are exclusively marine animals, till now these are not found as terrestrial or freshwater. About seven thousand living species are included in this phylum. The adults are recognizable by their radial symmetry. The Phylum includes starfish, sea urchins, sand dollars, and sea cucumbers, as Read more…
Phylum-Mollusca Phylum Mollusca is the second-largest phylum of the animal kingdom after the Arthropod. These are soft-bodied animals. The members of this phylum are called mollusks or mollusks. Around 85000 species of mollusks are recognized. The size of mollusks ranges from microscopic to 20 meters long animals. They show much Read more…
Phylum-Arthropoda – (The name is derived from- Atheros-joint, pods-appendages). These are invertebrates include insects, arachnids, myriapods, and crustaceans. Phylum Arthropoda is the largest phylum of the kingdom Animalia. Around two-thirds of all species on earth belongs to the phylum Arthropoda. Characteristics features of phylum Arthropoda Level of organization: The members Read more…
