Answer:
producers- grass
Tertiary consumer- hawk
secondary consumer- chicken
autotroph- grass
heterotroph- chicken, grasshopper, hawk
primary consumer- grasshopper decomposers- nil
The energy, biomass and number of organisms decreases as the trophic level increases.
Explanation:
In an ecosystem, energy is derived when one organism feeds on another. This occurs in a chain called FOOD CHAIN. A food chain always begins with an organism called PRODUCER, which is always an autotroph because it can synthesize its own food directly via photosynthesis. The grass is the producer and autotroph in this question. The producer is fed upon by a PRIMARY CONSUMER, which is always an heterotroph because it cannot produce its own food and depends on the producers. The grasshopper is the primary consumer in this question and a heterotroph.
The primary consumer (grasshopper) is eaten by a SECONDARY CONSUMER, which is also an HETEROTROPH. The secondary consumer is the chicken in this question. Lastly, the secondary consumer is eaten by a TERTIARY CONSUMER, also an heterotroph. The hawk is the tertiary consumer in this question.
As the trophic level progresses from the producer to tertiary consumer, the available energy in the food chain decreases. Also, the biomass of each organisms decreases. Lastly, the number of organisms in each trophic level decreases as well. Based on this, the producer will have the highest energy, biomass and number while the tertiary consumer will have the least.
