The process of spreading solid, liquid, or gaseous substances spontaneously and uniformly in a medium is called diffusion. Diffusion is the net passive movement of molecules or particles from regions of higher to regions of lower concentration. For diffusion to occur there must be a concentration gradient. To define diffusion in the biological context, imagine … Read more
Natural selection is the process by which heritable traits increase an organism’s chances of survival and reproduction. These traits are favored over less beneficial traits. Originally proposed by Charles Darwin, natural selection is the process that results in the evolution of organisms.
Organisms are found by complex combinations of non-living things. For this complex combination, there are some new properties are formed in organisms. Through non-living things that have an impact on the formation of organisms, these new properties are absent in non-living things. So, the properties of organisms differ from non-living things though non-living things have … Read more
Microbiology discusses the structure, biological functions, life cycle, and reproduction of different microorganisms like viruses, bacteria, fungi, etc. along with their produced diseases and their prevention. Besides, since it deals with ways to deal with the prevention of diseases produced by microorganisms through antibiotics and vaccines produced by microorganisms and their application in genetic technology … Read more
Ecology is the science of the relationship between and their environment. The knowledge regarding our surrounding environment with all organisms is ecology. Since theoretical discussion is made in ecology. So, it is called a branch of physical biology.
Physiology is the scientific study of the functions and mechanisms of living organisms, from the molecular and cellular levels to the level of whole organisms and populations. The foundations of physiology lie in several key areas, including anatomy, biochemistry, biophysics, genetics, and evolution. Physiology is a broad field, and there are many different subfields of … Read more
Haustorium is a fancy term for a specialized structure, like a tiny straw, used by some organisms to steal nutrients from others. They come in two main flavors: fungal and parasitic plants. The word “haustorium” comes from the Latin word “haustor,” meaning “one who draws or drinks,” which perfectly captures the function of this sneaky … Read more
Pneumonia may be caused by viral infections, bacterial infections, or fungi; less frequently by other causes. The most common bacterial type that causes pneumonia is streptococcus pneumoniae.