The flow chart below represents a feeding relationship in an ecosystem. a) Name two organisms which are both secondary and tertiary consumers. b) State two short...

      

The flow chart below represents a feeding relationship in an ecosystem.
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a) Name two organisms which are both secondary and tertiary consumers.
b) State two short term effects of immigration of insects in the ecosystem.
c) Name the organism which has the least Biomass in the food web. Explain.
d) State the role of the following in an ecosystem:
i. Saprophytes
ii. Leguminous plants.
e) Name one method that would be used to estimate the fish population in the ecosystem.

  

Answers


sharon
a). Hawk and water snail.
b). decrease in phytoplankton.
increase in population of small fish
c). Hawk, top predator, amount of energy decrease in successive trophic levels / energy is lost through respiration
Undigested / uncovered food.
d). i) Cause decomposition / recycling of nutrients.
ii). Root nodules have bacterial / rhizobium sp to convert free nitrogen into nitrates in the soil.
e). Capture – recapture or capture release recapture.
sharon kalunda answered the question on May 27, 2019 at 07:24


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