Question

list out producers , consumers , and decomposers in desert ecosystem and forest ecosystem

Answer 1

(DESERT ECOSYSTEM)

Producers= grasses, shrubs, cacti and gourd plants

Consumers = camels and gazelles.
Decomposers=snails, slugs, earthworms,
bacteria and mushrooms.

(FOREST ECOSYSTEM)

Poducers = any kind of green plant
Consumers=Deer 
Decomposers=bacteria, ants and termites 

I hope it helps you

Answer 2

The food web consists of producers - who are autotrophic and produce their food, consumers - who are heterotrophic and consume producers to fulfill nutrition, and lastly the decomposers - who feast upon the leftovers and decaying matter.

• Desert:- In the desert biome, the plants like cactus dominate the producer level. Rats, snakes, and lizards constitute the consumer level that depends upon the producers. The decomposers are insects, fungi, and bacteria that can sustain in such extreme weather.
• Forest:- In the forest biome, plants are the producers. The consumers are herbivores like elephants, deer, and carnivores like lions, tigers, etc. The decomposers are insects, bacteria, fungi, earthworms, etc.