the human body cell

Introduction - Living organisms are exposed to various external or foreign substances and disease causing organisms like bacteria, viruses and fungi. Such organisms which can cause a disease are known as Pathogens . It is observed that some human beings are more prone to a certain disease..

Animal Cell Plant Cell Usually smaller in size. Usually larger in size. Cell wall absent. Cellulose in any form is absent. Cell wall made up of cellulose is present. Cytoplasm is denser, more granular and occupies most of the space in the ..

Fibrocytes are stellate or star shaped cells, which produce the matrix and white and yellow fibres. Macrophages are irregular, amoeboid cells which can ingest bacteria and other disease producing germs by phagocytosis. Mast cells are spherical or oval cell..

It controls and coordinates all the activities of the muscles in response to the changes outside. It also maintains the internal environment of the body by coordinating the functions of the various internal organs and the involuntary muscle..

We know, for a bcc structure..

The nervous system carries out the following functions: It perceives the changes around us through our senses It controls and coordinates all the activities of the muscles in response to the changes outside It also maintains the internal environment of the body by coordinating th..

Blood cells of four females are tested with progesterone for cellular response. Find the test value and test if the mean progesterone response differs from that of the others at 99% confidence. Tested 5.65 2.18 1.32 2.45 Untested 5.12 1.2 1.1 1.42 => 4.468, the means do not differ or 2.57..

The human body has elaborate mechanisms for protection against foreign bodies, germs and cancer cells..

The human circulatory system is a closed circulatory system. The blood flows in closed vessels without coming in direct contact with the cells of the body..

Chromosome number is a species-specific character. The complete set of chromosomes in the body cell of a species is known as karyotype. For example, the 23 pairs of chromosomes found in the somatic cells represent the human karyotyp..