Biology Regents Practice #8

What unique behavior does the 'bone collector' caterpillar exhibit?

• It collects insect remains from spider webs to use as camouflage.

• It spins silk to create intricate webs.

• It feeds exclusively on plant leaves.

• It migrates across the Hawaiian Islands.

Imagine you are a biologist studying the bone collector caterpillar on a new Hawaiian island. How could you apply your understanding of its camouflage strategy to predict which predator would pose the highest threat to this caterpillar, aside from spiders? Support your prediction with reasoning based on the caterpillar’s adaptations.

Where was the 'bone collector' caterpillar discovered?

• Hawaiian island of Oahu

• Amazon rainforest

• Australian outback

• Sahara desert

Given what you know about energy flow and matter cycling in ecosystems, explain how the bone collector caterpillar’s carnivorous and cannibalistic behavior might impact the populations of other insects and spiders within its microhabitat.

What is the primary purpose of the caterpillar's prey-based wardrobe?

• To hide from spiders in their webs

• To attract mates

• To regulate body temperature

• To store food for later consumption

Analyze the relationship between the caterpillar and the spider whose web it occupies. Is this a mutualistic, parasitic, or commensal relationship? Justify your answer using specific evidence from the passage and relevant biological concepts.

How does the 'bone collector' caterpillar ensure its survival in spider webs?

• By camouflaging with insect remains and spider skin

• By spinning its own web

• By living in large groups

• By emitting a repellent odor

The bone collector caterpillar creates a protective case from the remains of at least six insect families and shed spider skin. Analyze how this behavior might influence its evolutionary success compared to other Hyposmocoma caterpillar species that do not use such elaborate camouflage. Discuss evolutionary pressures and possible outcomes.