What are some of the challenges caused by a natural monopoly? Check all that apply. It can raise prices without concern for customers. It is unable to serve all of the customers in a market. It lacks incentive to improve its good or service. It might not increase production if it cannot make a profit. It cannot be controlled by the government or other outside forces.

Which statements are true for invasive species? 1. they always stabilize an ecosystem. 2. they’re always successful in adjusting to a new habitat. 3. they often compete with the native species for resources. 4. they have the ability to displace the native species. 5. they’re always pests.

The graph shows the populations of two species in a particular region over two decades. based on the graph, what can you conclude about the relationship between the two species? a. the two species have a parasitic relationship. b. the two species are mutualistic in nature. c. the two species exhibit commensalism. d. the two species have a prey-predator relationship. e. the two species have a familial relationship.

How do you work out 21.3-8= show your working. plz