26 results found

Search Results for: progression

Progression

progression 1. The act of moving forward; a proceeding in a course; motion onward. 2. Course; passage; lapse or process of... Read More

Centrosome

Centrosome Definition What is a centrosome? The centrosome is considered to be the main microtubule-organizing... Read More

Allopatric speciation

We can define speciation as a process by which the novel genetically independent group of organisms are formed through the... Read More

Addressing the Unmet Medical Need for Safe and Effective Weight Loss Therapies

Perspective Addressing the Unmet Medical Need for Safe and Effective Weight Loss Therapies Cynthia M. Arbeeny Address... Read More

Harmony

Harmony 1. The just adaptation of parts to each other, in any system or combination of things, or in things, or things... Read More

Natural selection

Natural Selection Definition What is natural selection in biology? Natural selection is defined as a process in nature... Read More

CRISPR caused gene damage? Rise and pitfall of the gene-editor

CRISPR as a gene-editing tool made a prodigious leap forward in science. In 2015, it was heralded as Science’s 2015... Read More

The Evolution of Cell Organelles

The previous tutorial page noted the emergence of protists, organisms that possessed a distinct cell nucleus and contained... Read More

Decerebrate rigidity

Definition noun An involuntary posturing whereby the arms are extended on the sides while the head is arched back, as... Read More

Neutral theory of molecular evolution

Definition noun A theory stating that evolutionary changes particularly at the molecular level arise from genetic drift of... Read More

Adaptive evolution

Definition noun A kind of evolution that involves evolutionary changes that are adaptive to a particular... Read More

Semilunar valve

The human heart structure consists of heart chambers (2 atria and 2 ventricles) that differ functionally from each other.... Read More

Microtubule organizing center

Definition noun A structure inside the cell from where microtubules organize following depolymerization to turn into tubular... Read More

Evolutionary biology

Definition noun The branch of biology concerned with the evolution of organisms, particularly the origin and descent of... Read More

Primary succession

Primary succession definition Primary succession is an ecological succession where a newly formed area is colonized for the... Read More

Movement

movement 1. The act of moving; change of place or posture; transference, by any means, from one situation to another;... Read More

Hemostasis

Definition noun, plural: hemostases The process of stopping or arresting bleeding or keeping the blood within the damaged... Read More

Course

Course The whole plan of therapy. This may be radiotherapy in which case one refers to the number of fractions or,... Read More

Logarithm

Logarithm (Science: mathematics) One of a class of auxiliary numbers, devised by john napier, of Merchiston, Scotland... Read More

Exponential growth

Definition noun A growth in which the rate is proportional to the increasing number or size in an exponential (rather than... Read More

Accelerate

Accelerate 1. To cause to move faster; to quicken the motion of; to add to the speed of; opposed to retard. 2. To quicken... Read More

Fragmentation

Fragmentation Definition What is fragmentation? In general, fragmentation refers to the state or the process of breaking... Read More

Parenchyma

Parenchyma Definition What does parenchyma mean? Let's define the word "parenchyma". Most of the functional tissues in... Read More

Advance

Advance 1. The act of advancing or moving forward or upward; progress. 2. Improvement or progression, physically, mentally,... Read More

Ratio

ratio 1. (Science: mathematics) The relation which one quantity or magnitude has to another of the same kind. It is... Read More

recombination DNA repair

Recombination DNA Repair Definition Recombination DNA repair is a biological reparative process in response to DNA damage... Read More