The diagram of paramecium shows ciliary slipper shaped elongated structure. It can visible to the naked eyes as a whitish or greyish spot. Paramecium is often described as cigar shaped or spindle shaped. Its body is elongated, and blunt rounded ...

In this article you will get detailed information about nutrition in Paramecium with various steps. For your better understanding, we are taking one species of paramecium is P. caudatum. It is mostly asked in in written examination. So, concentrate your ...

Introduction Chordates are neither the most diverse nor the largest of the animal phyla, although in terms of the number of species, they come in a respectable fourth behind arthropods, nematodes, and molluscs. Chordates consist of three groups of unequal ...

Passive transport: Passive transport is a type of diffusion in which ions and particles or molecules of various substances move through the plasma membrane from a region of higher to lower concentration by diffusion. How is the transport of molecules ...

Fertilization: The fertilization is a process of fusion of two types of sex cells (male and female) or gametes is known as fertilization. In other words fusion of sperm with ovum is known as fertilization. Fusion of sex cells in ...

Structure of a Sperm Cell The sperm cell is a reproductive cell. The structure of a sperm cell or a spermatozoon is ideally suited to its functions. The function of a spermatozoon is to reach up to the ovum, fuse ...

Retrogressive Metamorphosis Retrogressive Metamorphosis is a peculiar types of metamorphosis found in herdmania and other urochordates. During development, certain characters of the advanced grade of organization of the larva completely disappear in the adult. It is probably due to the ...

Introduction Breathing is the process of inflow and outflow of air between the atmosphere and alveoli of lungs. It consists two types of processes teemed as inspiration and expiration. Inspiration means the intake of air into lungs and expiration means removal of air from the ...

Reproductive cycle The reproductive cycle of male and female is a natural changes that occurs in the male and the female reproductive system respectively. Male reproductive system consists of a pair of testes (primary reproductive organ of male) which produces ...