Question

1. the position of a species or group of species in a food chain or a food web that reflects the distance to the primary energy source of the food chain or web. A. producer B. Trophic Cascade C. secondary consumer D. trophic level

2. a species which often forms the major structural portion of the habitat A. resilient species B. keystone species. C. foundation species D. apex predator

3. interactions between two different species A. dependent interactions B. interspecfic interactions C. intraspecific interactions D. competion

4. a trophic level in an ecosystem usually carnivores that eat other carnivores A. primary consumers B. tertiary consumers C. producer D. secondary consumer

5.a species whose presence has inordinate influence the greater than its own abundance in maintaining the prevalence of various species in an ecosystem A. foundation species B. photoautotroph C. regulatory species D. keystone species

6. the trophic level that obtains its energy from sunlight or inorganic chemicals A. primary consumer B. producer C. secondary consumer D. tertiary consumer

7. trophic level in an exosystem usually a carnivore that eats a primary consumer A. tertiary consumer B. secondary consumer C. primary consumer D. primary producer.

Answer 1

(1) c.Secondary consumer(in an ecosystem the first trophic level is acquired by producers which are the primary source of energy in ecosystem(plants),the organisms which feed on producers are known as primary consumers and those who feed on primary consumers are known as secondary consumers)

(2)b.keystone species(keystone species are the species which are unique to a habitat and makes a major portion of it)

(3)Interspecific interaction(the interaction among the same species is called intraspecific interaction and the interaction between different spe ies is interspecific)

(4)(b)tertiary consumers(the organisms which feed on secondary consumers are called tertiary consumers)

(5)(A)Foundation species(these species have a strong role in structuring an ecosystem, and can acquire any trophic level)

(6)(B)Producer(producers are plants which perform photosynthesis and are primary source of energy for ecosystem)

(7)(B)secondary consumer(organisms that feed on primary consumer for eg.tiger feeding on rabbit ehich feeds on plants.)