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(D) Primary succession is the process of ecological succession that occurs in an area where no community previously existed.Based on the provided feat

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(D) Primary succession is the process of ecological succession that occurs in an area where no community previously existed.Based on the provided features:$1$. Occur on newly cooled lava: Correct (Primary succession starts on bare rock).$2$. Faster succession: Incorrect (Primary succession is very slow).$3$. Progress to mesic condition: Correct (Succession generally leads to a stable climax community,which is often mesic).$4$. Occurs on flooded land: Incorrect (This is usually associated with secondary succession or specific aquatic succession).$5$. Slower succession: Correct (It takes a long time to build soil).$6$. Changes in flora only: Incorrect (Succession involves changes in both flora and fauna).Therefore,there are $3$ features associated with primary succession: $(1)$,$(3)$,and $(5)$.

$(a)$ Fourth trophic level	$(i)$ Crow
$(b)$ Second trophic level	$(ii)$ Vulture
$(c)$ First trophic level	$(iii)$ Rabbit
$(d)$ Third trophic level	$(iv)$ Grass

From the above given features,how many are associated with primary succession?
Features:
$1$. Occur on newly cooled lava
$2$. Faster succession
$3$. Progress to mesic condition
$4$. Occurs on flooded land
$5$. Slower succession
$6$. Changes in flora only

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$(a)$ Fourth trophic level $(i)$ Crow
$(b)$ Second trophic level $(ii)$ Vulture
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$(d)$ Third trophic level $(iv)$ Grass

Select the correct option:

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Which of the following represents a tertiary consumer and a secondary consumer,respectively?

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From the above given features,how many are associated with primary succession?Features:$1$. Occur on newly cooled lava$2$. Faster succession$3$. Progress to mesic condition$4$. Occurs on flooded land$5$. Slower succession$6$. Changes in flora only