If you were studying the niche of a species of bird you might study a the food

If you were studying the niche of a species of bird

This preview shows page 3 - 5 out of 6 pages.

16. If you were studying the niche of a species of bird, you might study a. the food it eats. b. its predators. c. the temperatures it needs to survive. d. the places where it builds its nests. e. all of the above ____ 17. Two species that have a high degree of niche overlap will ____ 18. If similar species each occupy a smaller niche when they live together than they would if they lived alone, they are said to be ____ 19. Which of these outcomes is likely in a natural situation when two closely related species compete for resources in the same habitat?
Background image
____ 20. The concept that two species cannot occupy the same ecological niche is called a. coevolution. b. mutualism. c. primary succession. d. competitive exclusion. e. commensalism. ____ 21. Earthworms live in many grass and forest ecosystems, and aerate soil as they burrow. They ingest organic matter and travel between soil horizons. These traits, taken collectively, refer to the _____ of the earthworm. ____ 22. Two species of buttercup can be found in the same field in South Dakota. They emerge at different times: one species emerges and flowers in early spring, and the other species emerges in late summer, after the first species has set seed. Both flower species are pollinated by the same insect species, which is common in spring and summer. The different flowering times are likely due to ____ 23. Over the past century, sagebrush has dramatically expanded its range over the Colorado Plateau’s grasslands. This has been attributed to the overgrazing of the area’s grasses by cattle and sheep. This example indicates that ____
Background image
Image of page 5

You've reached the end of your free preview.

Want to read all 6 pages?

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern

Stuck? We have tutors online 24/7 who can help you get unstuck.
A+ icon
Ask Expert Tutors You can ask You can ask You can ask (will expire )
Answers in as fast as 15 minutes