Question

1. hermit crabs and snails: hermit crabs live in shells made and abandoned by snails. organism 1: □helped □harmed □not harmed/not helped organism 2: □helped □harmed □not harmed/not helped symbiotic relationship: ____________ 10. cuckoo and warbler: a cuckoo may lay its eggs in a warbler’s nest. the cuckoo’s young will displace the warbler’s young and will be raised by the warbler. organism 1: □helped □harmed □not harmed/not helped organism 2: □helped □harmed □not harmed/not helped symbiotic relationship: ____________

Explanation:

For hermit - crabs and snails, hermit crabs benefit from using the abandoned snail shells (helped), while snails are not affected by hermit - crabs using their old shells (not harmed/not helped). This is commensalism. For cuckoo and warbler, the cuckoo benefits as its young are raised by the warbler (helped), and the warbler is harmed as its own young are displaced. This is brood parasitism.

Answer:

1. Organism 1 (Hermit crab): helped

Organism 2 (Snail): not harmed/not helped
Symbiotic Relationship: Commensalism

1. Organism 1 (Cuckoo): helped

Organism 2 (Warbler): harmed
Symbiotic Relationship: Brood parasitism