After reading the paragraph below, answer the questions that follow.
Consider the following marine community: Sea otters prey on sea urchins and therefore help maintain a healthy sea urchin population. Sea urchins prey on kelp. By helping to maintain viable sea urchin populations, the sea otters are also allowing enough kelp to grow and act as a habitat for other organisms.
Suppose that a bacterial infection swept across a sea otter population and killed most sea otters before they could reproduce. How would the marine community be affected?
◦ Kelp would become a primary predator of sea urchins.
◦ For a period of time, there would be an overpopulation of kelp and therefore a decline in sea urchins.
◦ Sea otters would continue to decline until they reached extinction.
◦ For a period of time, there would be overpopulations of sea urchins and therefore a decline in kelp populations.
A marine food web in action: feeding baleen whales and birds.
Reading a Pap smear.
Make a note of the reading on the gauge after the first “puff,” which indicates the first ...
Use the answer sheet below the problems for your answer
Some biology questions
Biology Questions