Search Results for: population pyramid
Demographic transition
The demographic transition model is a theoretical framework that explains the historical shift in population dynamics as a... Read More
Population pyramid
population pyramid (Science: epidemiology) graphical representation of the age and sex composition of a population,... 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
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
Ecological pyramid
Definition noun A graphical representation in the shape of a pyramid to show the feeding relationship of groups of... 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
Pyramid of Numbers
Definition A graphical representation in the form of a pyramid showing the feeding relationship and the number of organisms... Read More
Heterotroph
Heterotroph Definition What is a heterotroph? Does a heterotroph make its own food? In biology and ecology, a heterotroph... 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
Environment
Environment Definition What does environment mean? If you mean physical environment, then it is defined as the surrounding... Read More
Microalgae
Microalgae Definition Microalgae (singular: microalga) are microscopic algal species as opposed to other algae that are... 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
