Examlex
The introduction of exotic species into a freshwater ecosystem generally increases the population of the native species.
Hierarchy of Needs
A theory proposed by Abraham Maslow outlining a sequence of human needs from basic physiological requirements to self-actualization.
Reality Principle
The psychological concept that represents the ability of the mind to assess the external world and act upon it accordingly, as opposed to acting on the pleasure principle.
Erogenous Zones
Areas of the body especially sensitive to sexual stimulation.
Psychosexual Stages
A theory proposed by Freud that child development occurs in five stages (oral, anal, phallic, latency, genital) each associated with pleasure in different parts of the body.
Q14: Mining in which the material is removed
Q21: Which one of the following is NOT
Q24: Polyploidy is an evolutionary mechanism that may
Q26: Forest soils typically have a deep A
Q36: Japan recycles more of its waste than
Q38: Carbon dioxide in the atmosphere<br>A)reduces the amount
Q39: As the human population increases,extinction rates also
Q43: Human populations are not subject to the
Q43: Which of the following is NOT a
Q65: In addition to northern latitudes,patches of tundra-like