Question

bsc 1005 exam 3, fall 2025
started: dec 4 at 8:32am
quiz instructions
question 24
an example of a mutualism, or +/+ relationship, is ______.
between snails and the plants that they eat
between birds that use some of the same resources
between corals and unicellular algae
cryptic coloration in frogs

Explanation:

Mutualism is a +/+ relationship where both species benefit.

• Snails eating plants is a predator - prey ( - / +) relationship.
• Birds using the same resources is competition ( - / -).
• Cryptic coloration in frogs is a form of camouflage (a survival adaptation, not a +/+ relationship).
• Corals and unicellular algae: Algae provide food (through photosynthesis) to corals, and corals provide a protected environment and nutrients (like carbon dioxide) to algae. So, it is a mutualistic relationship.

Answer:

between corals and unicellular algae