Biology

Every human being either man, woman, or child regardless of their color, creed, caste belongs to a single species called Homo sapiens.

Xylems are compound non-living conducting tissues. They conduct water and dissolved salts from roots to different parts of plants. Xylem also forms wood in plants. It supports the plant body. xylem tissues are present only in tracheophytes.

The word xenobiotic is derived from two Greek words, “Xenos” meaning “Stranger” and “Bios” meaning “life”. The unwanted and harmful chemical agents might go into the human body via numerous paths such as breathing, ingestion, skin contact, and so on. These foreign substances are known as xenobiotics.

Humans have many X – linked traits of which some like hemophilia and colour blindness are recessive while others like hypophosphatemia or vitamin D resistant rickets are dominant.

Western blotting is a very important and well-established analytical technique used in cell and molecular biology. It is also known as Protein Immunoblotting due to the use of antibodies to detect its antigen.

The genetic recombination in which bacteria absorbs naked DNA is called transformation. Transformation is the genetic alteration of a cell resulting from the introduction, uptake, and expression of foreign genetic material (DNA or RNA).

The region of actively dividing cells that form roots and are capable of division is called apical meristems. The cells in the meristem are thin-walled and densely filled with granular contents.

Geography is the study of Earth’s regions, lands, features, properties, and other relationships. The science of biogeography is to study geographical aspects of plants and animal life, especially their distribution in different parts of Earth.

Roots are important to the plant in a variety of means: they provide stability, nutrients, as well as function as the key resource of water and nutrient absorption. In general, the root consists of all parts of the plant that lie under the soil, despite the fact that a lot of the tissues of the plant, including the vascular tissues, are continual throughout the root and shoot.

The schistosomes or blood flukes are parasitic flatworms; which contain pumping mouths for sucking blood from their hosts and belong to the order Strigeatida. These are different from other members of the order, in that they have separate sexes.