Within a food chain, human beings occupy the role of:
Show answer Hide answer
Answer: C. Primary and Secondary consumer
Explanation
Human beings possess an omnivorous diet that allows them to consume both plants and animals. Eating plant foods places human beings at the primary consumer trophic level. Consuming animal meat elevates humans to secondary or higher consumer trophic positions. Trophic levels define the feeding positions of organisms within a biological food chain. Primary consumers are herbivores feeding directly on autotrophic producers. Secondary consumers are carnivores or omnivores that feed upon primary consumers.
Human dietary choices influence ecological footprints and agricultural resource requirements. Analyzing human trophic levels helps researchers understand global food web dynamics. Omnivory provides dietary flexibility across diverse agricultural and hunter-gatherer societies. Option A is incorrect because humans cannot produce their own food through photosynthesis. Option B ignores the fact that humans regularly consume meat and other animal products. Option D overlooks plant consumption by classifying humans exclusively as secondary consumers.
- Subject
- Agriculture
- Category
- Forestry
- Topic
- —
- Difficulty
- medium
Related questions
Q1. Aquatic green plants are cultivated in fish aquariums primarily to:
Show answer Hide answer
Answer: A. Oxygen
Aquatic green plants undergo photosynthesis in the presence of aquarium lighting systems. This biological process directly releases dissolved oxygen gas into the surrounding water. Fish require this dissolved oxygen to s...
Q2. The foundational organism initiating any food chain is:
Show answer Hide answer
Answer: A. Herbivore
Herbivores rely on primary producers, but food chains fundamentally initiate with photosynthetic producers rather than herbivores.
Q3. The characteristic life form of climatic climax vegetation within a biome is:
Show answer Hide answer
Answer: A. Uniform
Climatic climax vegetation within a distinct biome develops a uniform characteristic life form. Dominant plant species adapt successfully to prevailing regional temperature and moisture regimes. This uniformity reflects...
Q4. Within a parasitic food chain, lice and bugs occupy which trophic tier?
Show answer Hide answer
Answer: B. T3
Parasites like lice and bugs feed on secondary consumers directly. This trophic feeding relationship places them at the third trophic tier. Energy flows from primary producers through herbivores to these parasites. Troph...
Q5. In a hydrosere, plant genera such as Carex, Cyperus, and Juncus succeed immediately after a community composed of:
Show answer Hide answer
Answer: C. Scirpus, Typha, Sagittaria
Hydrosere succession proceeds through distinct ecological stages from open water to land. Scirpus, Typha, and Sagittaria form the dense emergent reed-swamp plant community. Sedges, rushes, and grasses like Carex, Cyperus...
Q6. Within a terrestrial forest ecosystem, the maximum concentration of energy resides in which trophic level?
Show answer Hide answer
Answer: A. T1
The first trophic level (T1) consists of primary producers like green plants and algae. Producers capture solar energy through photosynthesis, forming the base of the food web. Energy transfer efficiencies dictate that m...