In a field experiment, when all the starfish Pisaster were removed from an enclosed intertidal area, more than ..a..species of ..b…becomes extinct within ..c…because of …d…

In an field experiment, all the star fishes were removed from an enclosed intertidal area, more than 10 species of invertebrates became extinct within a year, because of

In an field experiment, all the star fishes were removed from an enclosed intertidal area, more than 10 species of invertebrates became extinct within a year, because of

Read the below statements and select the appropriate option. a. Experimental removal of Pisaster resulted in the extinction of more than species of invertebrates. b. Nearly 20 percent of all insects are known to be phytophagous. c Predators help to maintain species diversity.

Read the below statements and select the appropriate option. a. Experimental removal of Pisaster resulted in the extinction of more than species of invertebrates. b. Nearly 20 percent of all insects are known to be phytophagous. c Predators help to maintain species diversity.

Assertion : The Nile perch introduced into lake Victoria in east Africa led to the extinction of an ecologically unique assemblage of more than 200 species of cichlid fish in the lake. Reason : When alien species are introduced deliberately for economic or other uses, they often become invasive and cause extinction of indigenous species.

Assertion : The Nile perch introduced into lake Victoria in east Africa led to the extinction of an ecologically unique assemblage of more than 200 species of cichlid fish in the lake. Reason : When alien species are introduced deliberately for economic or other uses, they often become invasive and cause extinction of indigenous species. (a) If both assertion and reason are true and reason is the correct explanation of assertion. (b) If both assertion and reason are true but reason is not the correct explanation of assertion. (c) If assertion is true but reason is false. (d) If both assertion and reason are false.

Assertion : The Nile perch introduced into lake Victoria in east Africa led to the extinction of an ecologically unique assemblage of more than 200 species of cichlid fish in the lake. Reason : When alien species are introduced deliberately for economic or other uses, they often become invasive and cause extinction of indigenous species. (a) If both assertion and reason are true and reason is the correct explanation of assertion. (b) If both assertion and reason are true but reason is not the correct explanation of assertion. (c) If assertion is true but reason is false. (d) If both assertion and reason are false.

Assertion : The Nile perch introduced into lake Victoria in east Africa led to the extinction of an ecologically unique assemblage of more than 200 species of cichlid fish in the lake. Reason : When alien species are introduced deliberately for economic or other uses, they often become invasive and cause extinction of indigenous species. (a) If both assertion and reason are true and reason is the correct explanation of assertion. (b) If both assertion and reason are true but reason is not the correct explanation of assertion. (c) If assertion is true but reason is false. (d) If both assertion and reason are false.