Exam 7: Interactions Among Species

A cheetah and a lion share the same range in their habitat in the open savannah. Cheetahs are smaller than lions, but much faster. They feed on some of the same prey. Which of the following characterizes the relationship between these two organisms?

Suppose there is a pest that attacks agricultural crops. This pest is affecting the food supply and hurting the local economy. There is an animal that can eat and eliminate this population of pests. Design a plan to do this.

The Galápagos finches are an example of differentiation. Discuss how this happened, and why.

Bacteria that live in the ruminant gut and help with digestion are

A relationship where one organism is negatively affected while the other is not affected in a positive or negative way is called

Natural communities consist of species interacting with each other. How might the structure of the community be changed?

Describe a food chain and a food web. Which is the most realistic way to show trophic relationships?

In the diagram below, each circle represents the niche of each species. -The overlapping area represents

Which of the following best shows an ecological advantage of introducing non-native species into a habitat?

Rabbits can hop rapidly. They most likely evolved to be quick due to

Construct a chart showing the different species interactions. Describe their influence on each of the interacting species as positive (+), negative (-), or neutral (0).

Which of the following is not an example of mutualism?

Do you agree or disagree with the following statement: "Zebra mussels are good for ecosystems since they filter water and clean up toxins." Justify and defend your answer.

Heartworm disease is a serious and potentially fatal disease in dogs. It is caused by a worm called Dirofilaria immitis. As many as 30 species of mosquitoes can transmit heartworms. Adult heartworms live in the heart and pulmonary arteries of infected dogs. Adult worms cause disease by clogging the heart and major blood vessels leading from the heart and also interfere with the valve action in the heart. By clogging the main blood vessels, the blood supply to other organs of the body is reduced, particularly to the lungs, liver, and kidneys, leading to malfunction of these organs. This is an example of