41 results found

Search Results for: pyramid

Ecological pyramid

Definition noun A graphical representation in the shape of a pyramid to show the feeding relationship of groups of... Read More

Renal pyramid

Definition noun, plural: renal pyramids A conical mass of tissues as seen on longitudinal section of the kidney and... Read More

Pyramid of Productivity

Definition noun A graphical representation in the shape of a pyramid showing the distribution of productivity or flow of... Read More

Trophic level

In ecology, a trophic level pertains to a position in a food chain or ecological pyramid occupied by a group of organisms... Read More

Pyramid of Numbers

Definition A graphical representation in the form of a pyramid showing the feeding relationship and the number of organisms... Read More

Population pyramid

population pyramid (Science: epidemiology) graphical representation of the age and sex composition of a population,... Read More

Tertiary consumer

Definition noun, plural: tertiary consumers Any organism that consumes or feeds largely on primary and secondary... Read More

Primary producers

'Primary producers (also called simply as producers) are the autotrophs capable of producing organic compounds from light... Read More

Secondary consumer

Definition noun, plural: secondary consumers Any organism that consumes or feeds largely on primary consumers, as well as... Read More

Producer

Producer Definition Producers are organisms that can produce organic matter using an external energy source. They include... Read More

Heterotroph

Heterotroph Definition What is a heterotroph? Does a heterotroph make its own food? In biology and ecology, a heterotroph... Read More

Renal medulla

Definition noun, plural: renal medullae or renal medullas The inner region of the kidney that is arranged into renal... Read More

Renal column

Definition noun, plural: renal columns A column-like extension of the renal cortex in the renal medulla Supplement A... Read More

Autotroph

Autotroph Definition What is an autotroph? In biology and ecology, an autotroph is an organism capable of making nutritive... Read More

Herbivore

Herbivore Definition A herbivore is the primary consumer of the food chain that usually occupies the second trophic level... Read More

Predation

In ecology, predation is a mechanism of population control. Thus, when the number of predators is scarce the number of... Read More

Decomposer

Decomposer Definition The organisms that carry out the process of decay or breakdown of the dead organism are known as... Read More

Freshwater Producers and Consumers

There are four main constituents of the living environment that form the freshwater ecosystem, they are as follows. ... Read More

Population Growth and Survivorship

By: Maria Victoria Gonzaga Previously, we learned about biodiversity and endemism. Now, let's look at the... Read More

Demographic transition

The demographic transition model is a theoretical framework that explains the historical shift in population dynamics as a... Read More

Renal cortex

Definition noun, plural: renal cortexes or renal cortices The outer region of the kidney where the glomeruli, the proximal... Read More

Microalgae

Microalgae Definition Microalgae (singular: microalga) are microscopic algal species as opposed to other algae that are... Read More

Freshwater Ecology

Freshwater ecology focuses on the relations of aquatic organisms to their freshwater habitats. There are two forms of... Read More

Balanced diet

What is a balanced diet? What is the definition of a balanced diet? A nutritionally balanced diet fulfills all nutritional... Read More

Freshwater Community Energy Relationships – Producers & Consumers

The previous tutorial on producers and consumers noted the reliance that organisms have on one another to obtain energy to... Read More

Altitude

Altitude 1. Space extended upward; height; the perpendicular elevation of an object above its foundation, above the ground,... Read More

Primary consumer

Definition noun, plural: primary consumers Any organism that consumes or feeds on autotrophs Supplement A food chain is... Read More

Biotic factor

Biotic Factor Definition A biotic factor is the living component in an ecosystem. The term "biotic" means "of or related... Read More

Food web

Definition noun (ecology) A graphical model showing the interconnecting food chains in an ecological... Read More

Food chain

Everything is a cycle in life. The way organisms consume their food also follows a cycle. This is usually described as the... Read More

Environment

Environment Definition What does environment mean? If you mean physical environment, then it is defined as the surrounding... Read More

Top Carnivores

Carnivores that are situated at the top of a food chain or pyramid of numbers that feeds on other organisms though is not... Read More

Trophic

Definition adjective (1) Of, relating to, or pertaining to nutrition. (2) Of, or involving, the feeding habits or food... Read More

Calvin cycle

Calvin Cycle Definition The Calvin cycle, also known as the Calvin Benson cycle or the dark reactions, is a series of... Read More

Taxonomy

Taxonomy Definition The term "taxonomy" was developed from two Greek words, "taxis," meaning arrangement, and "nomia,"... Read More

Plankton

Plankton is a diverse group of typically microscopic, aquatic organisms suspended in the water column and rely on water... Read More

Detritivore

Definition noun, plural: detritivores An organism that feeds on detritus or organic waste Supplement A detritivore pertains... Read More

Kidney

Definition noun, plural: kidneys (anatomy) Either of a pair of two bean-shaped organs located at the back of the abdominal... Read More

Chlorophyll

Why are most plants green? Have you ever had the same question? Perhaps, you’ve been told that the plants are green... Read More

Biomass

Definition noun (1) The total mass of all living material in a specific area, habitat, or region. (2) Biological material... Read More