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
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
Sexual selection
What is Sexual Selection? The definition of sexual selection is very interesting in biological terms. The sexual selection... 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
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
Homoplasty
Definition noun, plural: (1) (evolution) The acquisition of a similar form or structure between species of different... 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
Bone matrix
Bone Matrix Definition Bone matrix refers to the matrix component of bone tissue. It provides the structural framework and... Read More
Glycogenolysis
Definition noun The metabolic process of breaking down stored glycogen in liver into glucose subunits (i.e.... Read More
Neural Control Mechanisms
Nerve cells called neurons generate electric signals that pass from one end of the cell to another and release chemical... Read More
Lotic Communities & Animals
A running water environment offers numerous microhabitats that simulate favorable conditions for many types of animals to... 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
Effects of Gravity on Sleep
Gravity is a natural phenomenon that affects all things particularly all living creatures from cell to human being. It has... Read More
Beta-blocker
Definition noun, plural: beta-blockers A drug that blocks the action of endogenous catecholamines on beta-adrenergic... Read More
Convergent evolution
Convergent evolution definition What is convergent evolution? Convergent evolution is a concept in evolutionary biology... Read More
Adrenaline
A catecholamine secreted by the adrenal medulla in response to stress (trade name Adrenalin); stimulates autonomic nerve... Read More
Sarcolemma
Sarcolemma Definition What is the sarcolemma? It is the thin, transparent, extensible plasma membrane of the muscle cell.... Read More
Adaptation
Adaptation Definition In biology and ecology, adaptation refers to the process of adjusting behavior, physiology, or... Read More
