Read the passage carefully and give the answers to the next five questions: Does the number of species in a community really matter to the functioning of the ecosystem? This is a question for which ecologists have not been able to give a definitive answer. For many decades, ecologists believed that communities with more species, generally, tend to be more stable than those with less species. According to the International Union for Conservation of Nature and Natural Resources (IUCN) (2004), the total number of plant and animal species described so far is more than 1.5 million.
Among the vertebrates, which of the following is the most species-rich group?
Fishes
Fishes are the most species-rich group among vertebrates, with over 34,000 known species. While insects are the most species-rich group overall, they are invertebrates, not vertebrates. Reptiles and mammals have significantly fewer species compared to fishes.
Similar Questions
Match List-I with List-II:
List-I (Recent Extinction) List-II (Place) (A) Dodo (I) Africa (B) Quagga (II) Russia (C) Thylacine (III) Mauritius (D) Stellar’s Sea Cow (IV) Australia Choose the correct answer from the options given below:
Ex-situ conservation includes:
In ‘rivet popper hypothesis,’ the ‘rivet’ signifies:
The scientist who proved that species richness directly correlates with the stability of a community, was:
The following are the various hypotheses proposed in explaining the greatest biological diversity in tropics except:
Match List-I with List-II:
List-I (Placental mammals)
List-II (Counterpart Marsupials)
List-I List-II (A) Anteater (I) Spotted cuscus (B) Bobcat (II) Numbat (C) Lemur (III) Flying Phalanger (D) Flying squirrel (IV) Tasmanian tiger cat Choose the correct answer from the options given below:
Important Questions from Biodiversity and its Conservation
Match List-I with List-II:
List-I (Recent Extinction) List-II (Place) (A) Dodo (I) Africa (B) Quagga (II) Russia (C) Thylacine (III) Mauritius (D) Stellar’s Sea Cow (IV) Australia Choose the correct answer from the options given below:
Ex-situ conservation includes:
In ‘rivet popper hypothesis,’ the ‘rivet’ signifies:
The scientist who proved that species richness directly correlates with the stability of a community, was:
The following are the various hypotheses proposed in explaining the greatest biological diversity in tropics except:
