Which of the following represents a trophic cascade? Question 1 options: The cascading of a river following overgrazing by predators The apex of the food chain dying off and being replaced by predators which keep overpopulated vegetation in check The bottom of the food web being replaced with producers and consumers Removal of predators from an ecosystem, leading to deer overpopulation, overgrazing and soil erosion
Added by Juan Manuel W.
Step 1
** Show more…
Show all steps
Your feedback will help us improve your experience
Adi S and 86 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Adi S.
Food Web In the food web above, the mountain lion and the hawk are the apex or top predators. Grass, shrubs, and trees are responsible for primary production in this community. Arrows indicate energy flow. If a disease kills all shrubs and trees in this ecosystem, the populations of herbivore species such as squirrels, rabbits, and deer will likely: A) Increase due to bottom-up controls B) Increase due to top-down controls C) Decrease due to bottom-up controls D) Decrease due to top-down controls E) Stay the same; the population of shrubs and trees has no effect on these species.
Melissa N.
The absence of mountain lions and wolves from Illinois' forests has led to increases in white-tailed deer populations and their subsequent impacts on the vegetation of these habitats. Which of the following terms or phrases best describes this situation from the perspective of a conservation biologist? trophic downgrading top-down trophic regulation bottom-up trophic control cascading trophic interactions predator-mediated coexistence of competitors Question 27 (1.5 points)
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD