Graphs showing the population pyramids of Canada from the year 2018. Shows a comparison of males versus females.

Visual representations of population distribution by age and sex for any country.

[Free Registration/Login may be required to access all resource tools.] Describes how population pyramids and survivorship curves relate to population structure.

Read this passage and study the graphics to answer the five-question quiz that follows.

This article describes tools ecologists use to describe the present state of a population and predict its future growth.

Presents charts showing the age distribution by gender of the population of Texas in 1990 and 2000.

This website looks at our dependence on soil and what it produces. It includes text, graphs, charts, illustrations and important statistics. Hosted by the Seafriends Marine Conservation and Education Center.