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Search Results for: indirect

Indirect life cycle

Definition noun A type of parasitic life cycle wherein the parasite is transmitted indirectly from one host to the next,... Read More

Apparent competition

Competition Definition One of the many branches of biology is ecology. Ecology is the study of the relationships that the... Read More

Mutualism

Mutualism Definition What is mutualism? In biology and ecology, a mutualism is a form of symbiosis that is characterized by... Read More

Photosynthesis

Photosynthesis is a physio-chemical process carried out by photo-auto-lithotrophs by converting light energy into chemical... Read More

Rovsings sign

Rovsing's Sign Definition Rovsing's sign is when palpation on the left lower quadrant of the abdomen results in pain in the... Read More

Obligate parasite

Parasitism is a form of symbiosis that occurs between a parasite and its host. The parasite is the organism that generally... Read More

Pleiotropy

Pleiotropy Definition When one single gene starts affecting multiple traits of living organisms, this phenomenon is known... Read More

Cell division

Cell division is a biological process by which a parent cell duplicates its cell contents and divides to give rise to two or... Read More

Exploitation competition

Definition noun (ecology) A form of competition wherein organisms indirectly compete with other organisms for resources by... Read More

Endomembrane system

Ever wondered how biomolecules are made within the cell and then they are released outside the cell for use by the body?... Read More

Intraspecific competition

Definition noun (ecology) A form of competition between members of the same species Supplement In biology, competition... Read More

Interspecific competition

Interspecific Competition Definition In Biology, competition is defined as the process that occurs among species that have... Read More

Infective stage

Definition noun (parasitology) The stage in the life cycle of an endoparasite wherein it can initiate infection to its... Read More

Amitosis

Definition noun, plural: amitoses A direct type of cell division wherein the nucleus and the cytoplasm go through a simple... Read More

Reservoir host

Reservoir Host Definition A reservoir host is a host that harbors the pathogen and serves as a source of the infective... Read More

Pathogen

What are Pathogens? Pathogens are defined as microscopic organisms, including viruses, bacteria, fungi, and parasites that... Read More

Zoonosis

Zoonosis Definition Zoonosis is an infectious disease that can be transmitted from an animal to a human host. Originally a... Read More

Community (biology)

Community, in biology, refers to the assemblage of interacting organisms (either of the same or different species)... Read More

Density dependent factor

Density-dependent factors are the limiting factors of an ecosystem that regulate population growth in a density-dependent... Read More

Epistasis

Epistasis Definition What is epistasis in genetics? How does epistasis occur? The epistasis definition, in biology, refers... Read More

Feedback mechanism

Feedback Mechanism Definition What is a feedback mechanism? A feedback mechanism is a physiological regulation system in a... Read More

Actions of Caffeine in the Brain with Special Reference to Factors That Contribute to Its Widespread Use

IV. Actions of Caffeine on Brain Functions and Behavior Having discussed the molecular and neuronal actions of caffeine,... Read More

Trophic level

In ecology, a trophic level pertains to a position in a food chain or ecological pyramid occupied by a group of organisms... Read More

Medullary chemoreceptor trigger zone

Medullary chemoreceptor trigger zone (CTZ) (anatomy and physiology) It is located in the Medulla (i.e. Part of the brain)... Read More

Y linkage

Definition noun, plural: Y linkages (genetics) A form of sex linkage involving particularly the Y chromosome Supplement Sex... Read More

Consciousness and Behavior

States of Consciousness Defined either by (1) behavior - ranging from attentive and alert to coma and (2) electrical... Read More

Endomembrane

Definition noun, plural: endomembranes The membraneous components in a cell, i.e. nuclear envelope, endoplasmic reticulum,... Read More

Hypertonic solution

Hypertonic Solution Definition Hypertonic solution is a relative term that describes the solution having a higher amount of... Read More

Limiting factor

Limiting Factor Definition A limiting factor refers to any of the factors (variables) in an environment capable of limiting... Read More

Chemiosmosis

Chemiosmosis Definition What is chemiosmosis? In biology, chemiosmosis refers to the process of moving ions (e.g. protons)... Read More

Uterus

uterus (Science: anatomy) The hollow muscular organ in female mammals in which the fertilized ovum normally becomes embedded... Read More

Life cycle

Definition noun The whole life history of an organism, usually depicted through a series of developmental stages (e.g. from... Read More

Passive agglutination

Definition noun An agglutination reaction of inert particles coated with soluble antigen through an antiserum specific for... Read More

Parasite

Definition noun, plural: parasites An organism that obtains nourishment and shelter on another... Read More

Definitive host

Different Biological Relationships The biological world is interconnected whether we notice it or not. All the life forms... Read More

Integumentary system

Integumentary System Definition The integumentary system is the outermost layer of the body. The animal body, in... Read More

Gravity perception

Gravity perception process whereby a bodily structure or organism (animal or plant) receives or detects a gravity stimulus.... Read More

Adhesion

Adhesion Definition Adhesion is the binding or attraction between dissimilar molecules, atoms, surfaces, or substances. The... Read More

Osteocyte

Osteocyte Definition The osteocyte is a mature bone cell. Other bone cell types are osteoprogenitor cells, osteoblasts, and... Read More

Cell adhesion

Cell Adhesion Definition Cell adhesion is the process in which a cell uses a specialized complex of proteins to get... Read More