Chapter 1, Problem 7E

In Glacier Sea over the past 5 years the moon jelly population has been INCREASING. How will the walleye pollock population be affected?

When populations of ocean perch and herring are reduced, which other species in this ecosystem are directly affected?  Identify at least two species that directly lose their food source.

Why are the polar bears feeding on garbage?

why is the otter a keystone species?

Which dam is on the river ganga?

In the Yellowstone National Park example, what happened to the aspen and willow trees after the extirpation of wolves? O a) herbivore populations increased b) herbivore populations declined c) plants declined in abundance d) plants increased in abundance e) no effect

What is the total fertility rate (TFR)? Why is the replacement fertility for humans approximately 2.1? How is Europe’s TFR affecting its rate of natural increase?

Describe when and why grazers (feeding on benthic algae) become the dominant feeding group in 1st order streams.

1)The video discusses some of the factors that allowed lionfish to expand throughout the Atlantic region. Which of the following reasons were given for why the lionfish population has been able to expand so rapidly? choose all that apply a)Lionfish out-compete native fish for food b)Atlantic predatory fish don't eat lionfish c)Lionfish are able to breed more frequently than native fish d)The Atlantic region has fewer parasites that attack lionfish e)None of these