Answer:
The relationships described in the sentences can be categorized as follows:
1. Algae grows on spider crab shells and helps to camouflage the crab. - Commensalism
2. Fish often hide in a grass called the swamp couch, which grows in shallow waters in marshes. - Commensalism
3. Bass are large fish that hunt smaller fish, such as herring. - Predation
4. Clams and shrimp both live in ponds and streams and filter small animals and plants from the water. - Mutualism
Reordered sentence: Commensalism, Commensalism, Predation, Mutualism.
Step-by-step explanation: