Question

ecological relationships assessment set c

1. which of the following best describes a symbiotic relationship where both species benefit?

a. mutualism
b. competition
c. parasitism
d. commensalism

1. in a predator-prey relationship, what typically happens to prey population numbers when predator numbers increase?

a. prey population decreases exponentially
b. prey population increases
c. prey population remains constant
d. prey population becomes extinct immediately

1. what type of ecological relationship exists when two species compete for the same limited resource?

a. facilitation
b. commensalism
c. mutualism
d. interspecific competition

1. which relationship describes a situation where one organism benefits while the other is unaffected?

a. parasitism
b. predation
c. mutualism
d. commensalism

1. what term describes the relationship between clownfish and sea anemones?

a. parasitism
b. mutualism
c. predation
d. competition

1. in which relationship does one organism benefit while causing harm to another?

a. mutualism
b. competition
c. commensalism
d. parasitism

Explanation:

Question 1

Mutualism is a symbiotic relationship where both species involved benefit from the interaction. Competition involves species competing for resources (not both benefiting), parasitism has one species benefiting at the expense of the other, and commensalism has one species benefiting while the other is unaffected. So the correct option is a.

In a predator - prey relationship, when the number of predators increases, there are more predators to hunt the prey. This leads to a decrease in the prey population. The decrease is not usually immediate extinction (option d is wrong) or an increase (option b is wrong) or remaining constant (option c is wrong). The prey population typically decreases, and while it may not always be exponential, option a is the most appropriate among the given choices.

Interspecific competition is the type of ecological relationship that occurs when two different species (inter - specific) compete for the same limited resource. Facilitation is a positive interaction where one species helps another, commensalism is one - sided benefit, and mutualism is mutual benefit. So the correct option is d.

Answer:

a. Mutualism

Question 2