external parts of a crayfish

Lateral view of rat The trunk is elongated antero-posteriorly to enclose all the visceral organs. Externally it bears a pair of fore limbs and pair of hind limbs, of the same size. The limbs are typically pentadactyl with five digits each. Digits end in claws. The sole of fore limbs and h..

. This type of anther is called versatile. e.g., Grasses, lili..

Nutrition in grasshopper (Poecilocerus pictus) is holozoic and as the name indicates is a herbivore, feeding on different kinds of vegetation like the grasses, germinating grains, leafy vegetation, etc. Grasshopper - External Features It bites off pieces of vegetation and has to grind it ..

Prosthesis is implanting an artificial substitute for a body part either externally or even internally. The branch of surgery dealing with prosthesis is called Prosthetic..

To understand the position of the mouth parts, observe the external features of a cockroach in the diagram below. The body of the cockroach is segmented into three portions head, thorax and the abdomen. The mouth parts are attached to the ventral side (underside) ..

While solids and liquids have only one specific heat, gases possess two types of specific heat specific heat at constant volume specific heat at constant pressure. When a gas absorbs heat at constant volume, all the heat energy supplied is used to rise its temperature. When a gas absorbs heat at co..

Prosthesis is implanting an artificial substitute for a body part either externally or even internally. The branch of surgery dealing with prosthesis is called Prosthetics . Intra ocular lens implanted in the eye following a cataract surgery is a good example. Artificial arm or ..

Prosthesis - Prosthesis is implanting an artificial substitute for a body part either externally or even internally. The branch of surgery dealing with prosthesis is called Prosthetics . Intra ocular lens implanted in the eye following a cataract surgery is a good example. Artif..

Fishes: Lamprey can regenerate its lost tail. Some fishes have the ability to regenerate parts of its fins. Amphibians: The regeneration power is well marked in urodel amphibians like salamanders, newts and their axolotl larvae. They can regenerate limbs, tail, external gil..

Two patterns of growth are commonly seen in animals regarding the proportion of the various body parts. Isometric growth: In this growth pattern, an organ grows at the same rate as the rest of the body. As the organism growths, the size remains proportional. Examples: Fish and Locust Allo..