Exam 16: Biogeographic Processes

Trees that shed their leaves seasonally are called:

Ecological succession involves changes in vegetation, but the animals change very little.

Biodiversity on Earth is increasing.

The Origin of Species by Means of Natural Selection was written by:

The positive interaction between species that is beneficial to at least one of the species and does not harm the other is called:

Soil burrows insulate an organism from extreme and rapidly fluctuating temperatures.

Energy and Matter Flow in Ecosystems on the average is highest for:

The stable community when the vegetation of an area stops changing through time is the:

The picture shows a live oak of California that is adapted to water scarcity through its:

This illustration BEST shows:

Define primary succession and secondary succession and differentiate between them. Why is this distinction important? What effects would this have?

The production of carbohydrates is:

Define the food web. Discuss the relationship between the number of organisms near the bottom and the number at the top. Explain the reason for this pattern.

A _______ is subdivision of the environment according to the needs and preferences of organisms or groups of organisms.

Biogeochemical cycles include:

On the illustration, letter E is:

Biomass is a better measure of productivity than is net primary productivity.

One adaptation to dry conditions is a short life cycle so germination, growth, and reproduction occurs quickly and seeds are dormant during the dry periods.

Energy is lost at each level of the food web through respiration.

The subdivision of the environment according to the needs and preferences of organisms or groups of organisms is the: