Bioniac

In this post we are going to discuss about Morphology and Anatomy of Frog. For the post of Morphology and Anatomy of Cockroach, Click  here . Frog  : •Frogs can live both on land and in freshwater and belong to class Amphibia of phylum Chordata.  •The most common species of frog found in India is Rana tigrina. •They do not have constant body temperature i.e., their body temperature varies with the temperature of the environment. •Such animals are called cold blooded or poikilotherms.  •They have the ability to change the colour to hide them from their enemies (camouflage).  •This protective coloration is called mimicry.  •Frogs are not seen during peak summer and winter. •During this period they take shelter in deep burrows to protect them from extreme heat and cold. This is known as summer sleep (aestivation) and winter sleep (hibernation) respectively. For the post of Morphology and Anatomy of Earthworm, Click  here . Morphology   of   Frog...

In this post we are going to discuss about the Morphology and Anatomy of Cockroach. For the post of Morphology and Anatomy of Earthworm, Click  here . Cockroach : •Cockroaches are brown or black bodied animals that are included in class Insecta of Phylum Arthropoda.  •Bright yellow, red and green coloured cockroaches have also been reported in tropical regions.  •Their size ranges from ¼ inches to 3 inches (0.6-7.6 cm) and have long antenna, legs and flat extension of the upper body wall that conceals head.  •They are nocturnal omnivores that live in damp places throughout the world.  •They have become residents of human homes and thus are serious pests and vectors of several diseases. Morphology   of   Cockroach : •The adults of the common species of cockroach, Periplaneta americana are about 34-53 mm long with wings that extend beyond the tip of the abdomen in males.  •The body of the cockroach is segmented and divisible into three distinct regi...

In this post we are going to discuss about Morphology and Anatomy of Earthworm, Cockroach and Frog. For the post of Animal Tissue System, click  here . Earthworm : •Earthworm is a reddish brown terrestrial invertebrate that inhabits the upper layer of the moist soil.  •During day time, they live in burrows made by boring and swallowing the soil.  •In the gardens, they can be traced by their faecal deposits known as worm castings.  •The common Indian earthworms are Pheretima and Lumbricus. For the post of Morphology of Root, Stem and Leaf, Click  here . Morphology   of   Earthworm : •Earthworms have long cylindrical body.  •The body is divided into more than hundred short segments which are similar (metameres about 100-120 in number).  •The dorsal surface of the body is marked by a dark median mid dorsal line (dorsal blood vessel) along the longitudinal axis of the body.  •The ventral surface is distinguished by the presence of genital op...

In this post we are going to discuss about Animal tissue system. For the post of Morphology of Flower, Fruit and Seed, click  here Animal   Tissue : The structure of the cells vary according to their function. Therefore, the tissues are different and are broadly classified into four types :  (i) Epithelial (ii) Connective (iii) Muscular (iv) Neural <> Epithelial   Tissue : •We commonly refer to an epithelial tissue as epithelium (pl.: epithelia). •This tissue has a free surface, which faces either a body fluid or the outside environment and thus provides a covering or a lining for some part of the body.  •The cells are compactly packed with little intercellular matrix.  •There are two types of epithelial tissues namely simple epithelium and compound epithelium.  •Simple epithelium is composed of a single layer of cells and functions as a lining for body cavities, ducts, and tubes.  •The compound epithelium consists of two or more cell layers...