Which one of the following animals may occupy more than one trophic levels in the same ecosystem at the same time?
Sparrow
Lion
Goat
Frog
When spontaneous process occurs then free energy of system
Which of the following in an ecosystem exhibits one-way flow rather than cyclic flow
Match the trophic levels with their correct species examples in grassland ecosystem.
$(a)$ Fourth trophic level | $(i)$ Crow |
$(b)$ Second trophic level | $(ii)$ Vulture |
$(c)$ First trophic level | $(iii)$ Rabbit |
$(d)$ Third trophic level | $(iv)$ Grass |
Select the correct option :
$(a)\quad(b) \quad(c) \quad(d)$
The organisms, which attack dead animals are
Choose correct answer.
$(1)$ Zooplanktons are primary producers in an aquatic ecosystem.
$(2)$ Decomposition is largely an oxygen requiring process.
$(3)$ In a natural ecosystem, fishes, wolf, etc. are carnivore.
$(4)$ The amount of energy decreases in each successive trophic level.