How do fishes reproduce sexually

In this section, you will learn and understand ways, how fishes reproduce sexually. Fishes are animals that have gills, fins, and vertebral columns in their bodies. They belong to the class Pisces of the kingdom Animalia.  Their heart has only two chambers. Now let’s start the topic, i.e. how do fishes reproduce sexually? Among fishes, … Read more


Introduction In this section, you will learn and understand locomotion in animals. There are five categories s of vertebrates, (1) fishes, (2) amphibians, (3) reptiles, (4) birds (5) mammals. Locomotion in animals means that animals change their position from one place to another. According to the theory of evolution, fishes are considered the ancestors of … Read more

                         4 stages of Mitosis

In this section, you will learn and understand the 4 stages of mitosis. Mitosis is a special type of cell division, in which a parent cell divides into four diploid (2n) cells. This cell division comprises two further divisions i.e. karyokinesis (a division of the nucleus) and cytokinesis (a division of the cytoplasm). The karyokinesis … Read more

How do amphibians reproduce?

In this section, you will study and understand how do amphibians reproduce? Basically, amphibians are concerned with the second class of kingdom Animalia. The name amphibian means “double life”’, and this is because the members of this group for a double life that they lead. Their larva spends their initial life period in water, while … Read more


                 Introduction                  In this section, you will understand factors affecting the rate of enzyme activity. Basically, there are four factors that affect the rate of enzyme activity, substrate concentration, temperature, PH, and inhibitors or activators. Any change in the factors can alter the enzyme’s activity.                            Enzymes are very sensitive to the environment in … Read more


INTRODUCTION In this section, you will understand mitochondrial function. The basic function of mitochondria is oxidative phosphorylation, which produces ATP  by using the energy released by the oxidation of food. INTRODUCTION TO MITOCHONDRIA The mitochondrion is known as the powerhouse of the cell. It is because it provides energy to the cell when a cell … Read more

                                                        What is CELL BIOLOGY? Explain it with cell diagram

Cell Biology: In this article, you will learn the definition of cell biology, its history of it, and cellular theory.  The term cell biology will be explained with a cell diagram. A cell diagram will help you to understand the structure and functions of the cell. Cell biology is generally is the study of cells. … Read more

Lymphatic system functions

Lymphatic System

In this section, you will know the lymphatic system functions in humans. Before knowing the lymphatic system functions in humans you will understand what is the lymphatic system. Generally in this system, tissues and different organs produce, store, and carry white blood cells that resist disorders and infections. This system includes the bone marrow, thymus, … Read more

       What is enzyme?

In this article, you are going to know about what is enzyme? When you listen to the word enzyme, the first thing that arises in your mind may be what is enzyme? Basically, enzymes are globular proteins that take part in the catalysis of chemical reactions. We will also learn about their discovery, characteristics, and … Read more