Search Results for: flight
Fight or flight reaction
Definition noun The response or reaction of an animal to a situation perceived as a threat to its survival, which involves... Read More
Analogous structures
Analogous Structures Definition In evolutionary biology, analogous structures are biological structures having similar or... Read More
Loose associations
Definition of Loose Associations When asked to define loose associations in psychology one can tell that it is a formal... Read More
Sugar Homeostasis
Blood Sugar Regulation As described in Cell Biology tutorials, the body requires volumes of glucose in order to create ATP.... Read More
Hypothalamic theory
Definition noun A theory on emotion formulated by Walter Cannon in 1929 which states that the diencephalon, consisting of... Read More
Nervous tissue
Nervous Tissue Definition Nerve cells (or neurons) and their associated cells, such as neuroglia cells, make up nervous... Read More
Diaphoresis
What is Diaphoresis? Diaphoresis is referred to excessive or profuse perspiration or sweating which may be due to... Read More
Morphology
Morphology Definition Morphology means the study of the shape and structure of living things from a biological perspective.... Read More
Hormone Production
Reviewed by: Mary Anne Clark, Ph.D.Hormones are chemical messengers produced by glands in the endocrine system.... Read More
A Look Into Natural Selection and its Mechanisms
Charles Darwin is credited with outlining the fundamentals of evolution. He was a smart and eager pupil and protégé, and... Read More
Sexual selection
What is Sexual Selection? The definition of sexual selection is very interesting in biological terms. The sexual selection... Read More
Bone matrix
Bone Matrix Definition Bone matrix refers to the matrix component of bone tissue. It provides the structural framework and... Read More
Genetic Engineering Advantages & Disadvantages
Through genetic engineering, scientists are able to move desirable genes from one plant or animal to another or... Read More
Locomotion
Definition noun The ability of cells or organisms to move and propel itself from place to place Supplement Locomotion in... Read More
Mitochondrial DNA – hallmark of psychological stress
We often hear that stress can be unsettling as it could make us ill when it becomes chronic and overwhelming. However, is... Read More
Homoplasty
Definition noun, plural: (1) (evolution) The acquisition of a similar form or structure between species of different... Read More
Sympathetic nervous system
Definition noun A division of the (vertebrate) autonomic nervous system that is chiefly involved in producing an immediate... Read More
Sarcolemma
Sarcolemma Definition What is the sarcolemma? It is the thin, transparent, extensible plasma membrane of the muscle cell.... Read More
Glycogenolysis
Definition noun The metabolic process of breaking down stored glycogen in liver into glucose subunits (i.e.... Read More
Adrenaline
A catecholamine secreted by the adrenal medulla in response to stress (trade name Adrenalin); stimulates autonomic nerve... Read More
Lotic Communities & Animals
A running water environment offers numerous microhabitats that simulate favorable conditions for many types of animals to... Read More
Scared to Death
Scared to Death: Self-Willed Death, or the Bone-Pointing Syndrome by Patrick D Hahn Accepted on: September 4,... Read More
Polyphyletic
Definition adjective Taxonomic groups that have similar character states that descends from one or more ancestral... Read More