Population Size and Structure Answers

Interactions between organisms and their environment impact the organism’s overall population. Zebra mussels are not native North America; they were brought here by ships travelling from Europe. They reproduce quickly and filter out plankton from the water reducing food for native fish. Native fish populations have started to decline. Which concept shows the relationship between zebra mussels and native fish?

A rock is classified as

Hunter is studying for his ecology test. Which fact would least likely show up in his notes?

Which best describes a bird’s role as it eats seeds?

Which describes a grizzly bear’s habitat?

Which describes the habitat of a frog?

What is an organism’s niche?

Which relationship is shown in the graph?

Why is a shell considered to be biotic?

A biologist counts the number of rabbits in a population each year and observes a decrease in population. Since the coyote population has exploded, the biologist concludes that the coyote population has had a negative impact on the rabbit population. Which describes the biologist’s actions?