Taxonomic Aids

Taxonomic aids refer to the stored specimens, materials and other information sources that can help in the identification and classification of an unknown organism. During taxonomic studies, the original specimens of plants, animals and other organisms are gathered, stored and preserved, along with detailed information including its characteristic features. Live specimens stored in Botanical gardens … Read more

Basic Processes Of Taxonomy

For identifying and classifying organisms into different groups, a systematic procedure should be followed. The basic processes involved in taxonomy are as follows: Characterization – Understanding of characters of organisms such as external and internal structure, structure of cell, development process, ecological information etc. For example, all flowering plants are grouped together (Angiosperms). All animals … Read more

Diversity in the Living World

Biodiversity Diversity is simply defined as ‘the variety of life’. It refers to the total number and types of plants and animals present on earth. The total number of species so far identified and described is nearly 1.75 million, and scientists claim that several millions of species are yet to be discovered. Due to this … Read more

The Living World

Living Organisms How do we define “life”? To decide whether a given thing is alive, we will look for the presence of certain features that are generally found in all living organisms. Life refers to these qualities of living organisms that distinguishes them from the non living. Fundamental properties of life Cellular Organization: All living … Read more

ZIFT

ZIFT is an assisted reproductive technology, that is similar to the in vitro fertilization technology and the transfer of the embryo, but the difference is that in this technique the embryo is transferred to the fallopian tube. Due to the transfer of the fertilized eggs, directly into the tubes, this process is also known as … Read more

Water Pollution

Introduction. Water pollution refers to the contamination of water bodies through the release of harmful chemicals into water bodies. This is detrimental to living organisms that live in or come into contact with polluted water bodies. Causes of Water Pollution Industrial waste. Factories and industries usually produce large amounts of toxic chemical waste. Discharge of … Read more

Vegetative Propagation in Plants

  Vegetative reproduction is the asexual reproduction in the plants. In this type of reproduction, only one plant part is involved and the new offspring is developed from the one parent only. There are two types of vegetative reproduction, natural and artificial. Many asexual vegetative propagation techniques have been developed by the horticulturists and they … Read more

Variation (Mutation and Recombination)

Variation is used to measure and study the genetic differences, which are existing in the population. Collectively, the genetic variation of the entire species is known as genetic diversity. These variations are described as the differences, in the segments of genes, or DNA. There are various factors, which reshuffle the alleles, within the population, and … Read more

Vaccine of HIV

Vaccine or immunology is a substance that teaches the body how to recognize and protect itself against a disease-causing agent, e.g. a virus or bacterium. Even Most licensed vaccines are over 90% effective There is still no HIV vaccine is available which is 100% effective.HIV vaccines are not able to cause HIV. Although, preventions that … Read more

Vaccine of Cancer

Vaccines, are medicines that help our body tofight any disease. They can make the immune system stronger to recognize and destroy harmful substances or bacteria’s. There are 2 types of cancer vaccines: 1-Prevention vaccines 2-Treatment vaccines Cancer prevention vaccines Prevention vaccines are given to healthy people bydoctorsto keep certain cancers from developing. Just like the … Read more