Answered: If two species are competing for a…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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Question

Explain why you chose A or B, etc. Provide a logical explanation defending your answer choice.

If two species are competing for a resource, and one species is a much better competitor than the other, the most likely outcome is _________.

Group of answer choices

A) The stronger competitor attempts to predate the other

B) The competitors partition the resource they are competing over

C) Evolution of a mutualist or commensal relationship

D) All of these are likely

E) Extirpation of the weaker competitor

Q: 3-toed sloths have a species of algae that live in their hair, which improves their camouflage in the forest canopy. In turn, the algae get moisture and a place to grow. This is an example of a(n) ________________ interaction, and is denoted by ______.

Group of answer choices

A) Amensal, +/0

B) Amensal, -/0

C) Mutualistic; +/+

D) Commensal; +/0

E) Commensal; +/+

F) Mutualistic; +/0

The following is my reasoning: Is my reasoning correct or at least on the right track?

When two individuals of different species compete for food or a nesting site for an extended period of time, this results in competitive exclusion, which is a side effect of interspecific exclusion. This outcome might result in the weak competitor being eliminated from this habitat.

Therefore the correct answer to first question is (E) Extirpation of the weaker competitor.

Q.3 As both the species involved are benefited by the relation, this is an example of mutualistic relation. It will be denoted as (+/+), showing that both species are positively affected.

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