Question

which type of population pattern shows a regular rise and fall pattern and involves predator and prey relationships?
exponential
cyclic
declining
irruptive

Explanation:

To solve this, we analyze each option:

• Exponential: Shows continuous growth, no rise - fall with predator - prey.
• Cyclic: Involves regular cycles (rise and fall) often due to predator - prey interactions (e.g., prey population rises, predator population then rises as prey is more available, leading to prey decline and then predator decline, repeating).
• Declining: Shows a consistent decrease, not a regular rise - fall.
• Irruptive: Involves sudden population increases followed by crashes, not regular cycles.

So the cyclic pattern matches the description.

Answer:

B. cyclic