Question

food chain of the following animals-
algae, shark,seal,fish
​

Answer 1

Explanation:-

The food chain begins from the producer (the organism that produces its own food) and proceeds through the primary, secondary and tertiary consumers to the decomposers. 

Here, algae is the producer (being an autotroph); the fish is a primary consumer since it eats the algae; the seal is the secondary consumer since it feeds upon the fish, and lastly, the shark is a tertiary consumer since it eats the seal. 

Hence, the food chain is:

ALGAE⇒ FISH ⇒ SEAL ⇒ SHARK

Answer 2

algae prepare food by sunlight through photosynthesis then fishes or insects eat algae.

shark eats small fishes or other small ocean species and get eaten by other big sharks or seals.

seal eats fish and get eaten by other big fishes. fish eat algae or small insects of ocean and get eaten by sharks or other big fishes