Category Archives for "Science"

Cockroach Anatomy | A Complete Internal and External Structure

Cockroach Anatomy

The anatomy of cockroach can be read from the external appearance and the internal organization. Since, it belongs to the class of insects, it is to similar to most other insects. Cockroach Anatomy and Structure The anatomy has two main parts like the 1) External 2) Internal External anatomy includes the Appendages eyes antenna cercus […]

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Capillaries Structure and Types | A Definitive Guide

Structure of capillaries

The circulatory system is one of the most important organ systems of our body. It is essential for the transport of gases, nutrients, hormones, etc. within the body. It also important in the transportation of blood and lymph and regulation of body temperature. The circulatory system consists of a) Heart b) blood vessels. The blood […]

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12 Differences between spermatogenesis and oogenesis

Differences between spermatogenesis and oogenesis

As we have discussed the process of Spermatogenesis and Oogenesis in another article. Let us see here the differences between spermatogenesis and oogenesis. Based on the core facts like the of millions of sperms, single ova once a month phenomenon we have following differences. Differences between spermatogenesis and oogenesis Sl.No Feature Spermatogenesis Oogenesis 1 Occurs […]

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15 Differences between antigen and antibody

Differences between antigen and antibody

Antigen is a immunogenic portion present on the foreign cell or substance. To combat that antigen or foreign cell, our body’s immune system produces antibodies. Differences between antigen and antibody Sl.No Properties Antigen Antibody 1 Name Anti – AgainstGen – Generate/ formation Anti – AgainstBody-Against the body 2 Other names Also called as Immunogens. Also […]

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Streptococcus vs Staphylococcus | 20 Key Differences

Streptococcus vs Staphylococcus

Streptococcus and Staphylococcus bacteria are widely found in humans and animals. They are non-motile, do not undergo spore formation and are even facultative anaerobes. But there are many differences between Streptococcus vs Staphylococcus bacteria as seen in the table below. Streptococcus vs Staphylococcus Sl.No Features Streptococcus Staphylococcus 1 Bacteria type Streptococcus is a Gram-positive bacteria, […]

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Difference between Light Microscope and Electron Microscope

Difference between Light Microscope and Electron Microscope light microscope

A microscope is a device used to observe minute objects invisible to the naked eye. It is one of the important discoveries which helped in the progression of science and medicine. This microscope is of two types like Light microscope (compound microscope) Electron microscope. Both are meant for magnification of minute objects but the resolution […]

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Limit Test for Arsenic with Apparatus and Reaction

Limit Test for Arsenic

Arsenic is a heavy metal that is very harmful. Besides, as an impurity, it also creates instability in pharmaceutical preparations. However, it is impossible to avoid arsenic impurity from being present in the finished products. But, its presence in meager part per million is acceptable So, it is essential to check the limits of arsenic […]

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Earthworm Digestive System in Detail with Diagram


An earthworm Digestive System is quite similar to higher animals. It ingests food by the pumping action of its pharynx. The food is engulfed by the earthworm by rhythmic contractions of the pharyngeal wall, which further leads to the buccal chamber. The mouth has only one work which is to feed on its prey. The […]

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