any complex organism of the group Lichenes, composed of a fungus in symbiotic union with an alga and having a greenish, gray, yellow, brown, or blackish thallus that grows in leaflike, crustlike, or branching forms on rocks, trees, etc.
primary ecological succession
the resporation of a ecosystem
secondary ecolgical succession
reastoring an ecosystem after naturk disaster like a flood
the relationship between an infant and its mother in which the infant is dependent on the mother both physically and emotionally.
a relationship between two species of organisms in which both benefit from the association.
a type of relationship between two species of a plant, animal, fungus, etc., in which one lives with, on, or in another without damage to either.
a relation between organisms in which one lives as a parasite on another.
a class of individuals having some common characteristics or qualities; distinct sort or kind.
a social group of any size whose members reside in a specific locality, share government, and often have a common cultural and historical heritage.
the number of organisums living together in a ecosystem
a major biotic community characterized by the dominant forms of plant life and the prevailing climate
All regions on the Earth's surface and the layer of the air above it's surface where life can exist.
the act of competing as for profit or a prize
(physiology) the responsive adjustment of a sense organ (as the eye) to varying conditions (as of light)
organism that captures energy from sunlight or inorganic substances to produce its own food; provides the foundation of the food supply for other organisms
an organism that depends on complex organic substances for nutrition
diversity among and within plant and animal species in an environment.
the property of being sustainable
preventing especially liquids to pass or diffuse through
being the most concentrated solution possible at a given temperature
constructing or tending to construct or improve or promote development
the quality of being free from change or variation
the tendency of a system, especially the physiological system of higher animals, to maintain internal stability, owing to the coordinated response of its parts to any situation or stimulus that would tend to disturb its normal condition or function.
wavelike motions of the smooth muscle, occurs in the small intestine
the act of retaining
the act or process of infiltrating
the act or fact of urbanizing, or taking on the characteristics of a city: Urbanization has led to more air pollution and increasing childhood asthma.
to divest or clear of forests or trees: Poor planning deforested the area in ten years.
the power or ability to return to the original form, position, etc., after being bent, compressed, or stretched; elasticity
unfavorable or antagonistic in purpose or effect: adverse criticism.
a state of rest or balance due to the equal action of opposing forces.
a letter of extra size or an ornamental character used at the beginning of a chapter or other division of a book, manuscript, or the like.
to become smaller in size
to withhold or deny consent to do, enter into or upon, etc.; refuse: He declined to say more about it.
the part of the cell that tells it what to do
the definite boundary or wall that is part of the outer structure of certain cells, as a plant cell.
the semipermeable membrane enclosing the cytoplasm of a cell
billeds up a person
an organelle in the cytoplasm of cells that functions in energy production.
a membrane-bound cavity within a cell, often containing a watery liquid or secretion
a plastid containing chlorophyll
minute hairlike organelles, identical in structure to flagella, that line the surfaces of certain cells and beat in rhythmic waves, providing locomotion to ciliate protozoans and moving liquids along internal epithelial tissue in animals
a long, lashlike appendage serving as an organ of locomotion in protozoa, sperm cells, etc