Question

multiple select question
select all that apply
which of these interactions that have a positive effect on one species and a negative effect on the other?

□ herbivory
☑ predation
□ commensalism
□ parasitism
□ neutralism

Explanation:

• Herbivory: Herbivores benefit by getting food (positive), plants are harmed (negative) as they are eaten.
• Predation: Predators benefit (positive) by getting food, prey are harmed (negative) as they are killed/eaten.
• Commensalism: One species benefits, the other is neither helped nor harmed—so this does not fit.
• Parasitism: Parasites benefit (positive) by using the host, hosts are harmed (negative) (e.g., disease, resource loss).
• Neutralism: Both species are unaffected—so this does not fit.

Answer:

A. Herbivory, B. Predation, D. Parasitism