170 results found

Search Results for: ecosystem

Ecosystem

Ecosystem Definition An ecosystem is a system consisting of biotic and abiotic components that function together as a unit.... Read More

Ecosystem diversity

Ecosystem Diversity Definition What is ecosystem diversity? Ecosystem diversity deals with the study of different... Read More

Pollution in Freshwater Ecosystems

As with all ecosystems, the existence and operations of human society inevitably have an effect on the way of life in a... Read More

Population Regulation in an Ecosystem

Darwin focused some of this work in regards to the population size of a species, and what factors may affect them. He... Read More

Abiotic factor

An abiotic factor is a non-living element of the environment that influences the way organisms and ecosystems function. Some... 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

Decomposer

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

Abiotic

An abiotic factor in Ecology or Biology pertains to any constituent within an ecosystem that lacks inherent life or living... 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

Ecosystem dynamics

Ecosystem dynamics Those intrinsic ecological functions through which an ecosystem becomes self-regulating, self-sustaining,... Read More

Ecosystem Succession

Just one of the amazing aspects of life on Earth is that it spreads to all areas where the habitat will allow it to survive.... Read More

Biosphere

What is biosphere? The biosphere is that part of the Earth where living things thrive and live. It is the portion of the... Read More

Community (biology)

Community, in biology, refers to the assemblage of interacting organisms (either of the same or different species)... Read More

Biodiversity

The biological world or life on earth is a marvel that has amazed us since time immemorial. The rich natural diversity of... Read More

Limiting factor

Limiting Factor Definition A limiting factor refers to any of the factors (variables) in an environment capable of limiting... Read More

Herbivore

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

Environment

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

System

A system pertains to interdependent or interrelated objects comprising and functioning as a whole. In biology, it may refer... Read More

Abiotic and Biotic Factors

Abiotic factors are essentially non-living components that affect the living organisms of the freshwater community.When... Read More

Dominant species

Dominance is the state of being supreme or dominant. Community dominance refers to the form of dominance where certain... Read More

Ecological niche

Ecological Niche Definition An ecological niche refers to the interrelationship of a species with all the biotic and... Read More

Ecosystem function

Ecosystem function The collective intraspecific and interspecific interactions of the biota, such as primary and secondary... Read More

Indicator Species and Endangered Species

Indicator Species Certain species are capable of expressing characteristics that can indicate the state of the ecosystem... Read More

Redundancy Hypothesis

Definition noun A theory that assumes one or more species impart a role within an ecological unit to maintain dynamic... Read More

Primary productivity

Planet Earth is home to different types of life forms ranging from microscopic bacteria to giant whales and elephants. To... 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

Organization

Organization Definition The meaning of the term "organization" is very simple. It means the state wherein things are... Read More

Net primary productivity

In order to keep the biosphere running, different organisms play different roles and functions. Some help in oxygen... Read More

Genetic diversity

Genetic Diversity Definition Each species is composed of individuals with their own set of genes. A gene is the inheritance... Read More

Abiotic Factors – Water Conditions

Evidently, the light and heat from the sun play an important role in providing suitable conditions. However, the water... 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

Biome

Biome Definition What are biomes? There is no universal definition of biomes. But biome definition in biology of different... Read More

Equilibrium

Equilibrium Definition In Biology Equilibrium refers to the state of balance and stability. In biology, equilibrium is... Read More

Environmental resistance

Environmental Resistance Definition Environmental resistance is such a process in which certain different elements or... Read More

Ecological Research: Measuring & Analysis

By: Maria Victoria GonzagaPreviously in this lesson, we learned that high biodiversity is essential to a healthy... Read More

Population Growth and Survivorship

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

Regulation of Biological Systems

Regulation of Biological Systems tutorials are focused on the modulation of biological systems from cell to population... Read More

Arthropod

Arthropod Definition What is an arthropod? An arthropod is an invertebrate living organism characterized by the presence of... Read More

Diversity

Definition noun, plural: diversities (biology) The degree of variation of living things present in a particular... 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