What are the Branches of Biology and their Definition

Branches of Biology and their Definition

 

Biology has following branches:

 

Morphology

 

It is the study of form and structure of an organism. It has two types

 

  1. i) External morphology is the study of external parts.

 

  1. ii) Internal morphology is the study of internal parts. It is also called anatomy.

 

Histology

 

It is study of tissues with microscope.

 

Cell Biology

 

It is the study of structure and function of cells.

 

Physiology

 

It is the study of different parts of organism.

 

Ecology

 

It is the study of relationship between organism and their environment. It is also called environmental biology.

 

Taxonomy

 

It is the study of classification and naming of living things.

 

Embryology

 

It is study of all changes from zygote to organisms is born or hatched.

 

Genetics

 

It is the study of genes and transfer of characters from parents to offspring.

 

Paleontology

 

It is the study of fossils. It has two types:

 

  1. i) Palaeo-botany is the study of fossils of plants.
  2. ii) Palaeo-zoology is the study of fossils of animals.

 

Fossils are the dead remains of organisms preserved in rocks.

 

Biochemistry

 

It is the study of chemical reactions taking place in living things.

 

Biotechnology

 

It is the study of practical application of organism for the welfare of mankind.

 

Micrograph of e-ink screen structure of e-book In this photo, it should be noted that there are no gaps between the individual pixels of the image, they are located close to each other. Thin auxiliary conductors are also noticeable in the photo (they are not found on all screens of e-books). And now, for comparison, – the structure of the smartphone screen (taken from the IPS screen of the Philips S397 smartphone):Micrograph of the IPS TFT structure of a smartphone screen

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