Human: Secondary/tertiary consumer
Cat: Secondary consumer
Pitcher plant: Producer and consumer
Mushroom (growing on dead leaves): Decomposer
Cockroach: Omnivore
Related Questions:
- What is the importance of decomposers in an ecosystem?
 - Name the components of an ecosystem.
 - Why does an ecosystem need a continuous supply of sunlight?
 - Distinguish between the following:
 - Why do food chains always begin with a producer?
 - Name the structure through which the exchange of gases can take place in plants.
 - Name the ways through which a plant can obtain oxygen.
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 - Compare inspired air and expired air.
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 - What is the importance of breathing in fresh air?
 - What is the importance of keeping the nasal and oral cavity clear?
 - Differentiate between:
 - Breathing through the nose is healthier than breathing by mouth. Why?
 - What are the conditions necessary for efficient gaseous exchange between an organism and the environment?
 - Describe the effects of cigarette smoking on the inner walls of the trachea of human beings.