A remarkably high number of scholars passed the AP Biology exam in 2016 with over 61 percent earning college credit. The College Board released the entire free-response section for future scholars to study. After answering the eight...

Chart ecological community interactions and answer questions about niche, defenses, trophic structure, and succession. This community ecology worksheet provides a general overview of the interactions that occur among organisms that share...

Like humans, plants can be negatively affected by overcrowding. Unlike humans, plants cannot get up and move to a new environment or explore how to utilize new resources. This experiment will explore the effects of crowding (population...

[Free Registration/Login may be required to access all resource tools.] Overview of population size, density, and distribution.

[Free Registration/Login may be required to access all resource tools.] Students will identify and understand the significance of size, density and distribution in the population of organisms.

[Free Registration/Login may be required to access all resource tools.] Check out the patterns of population growth and recognize the exponential and logistic growth similarities and differences.

AmphibiaWeb, a site inspired by global amphibian declines, is an online system that allows free access to information on amphibian biology and conservation. This site is filled with amphibian facts, a glossary of terms, species numbers,...