What is the expanded form of IUCN?
IUCN stands for 'International Union for Conservation of Nature and Natural Resources'. Its headquarters are situated at gland in Switzerland.
Define the terms (i) Bioprospecting (ii) Endemism
(i) Bioprospecting is a term that describes the process of discovery and commercialisation of new products based on biological resources.
(ii) Endemism refers to presence of some species in particular regions only and now here else.
$$ \text { What is common to the species shown in figures } A \text { and } B \text { ? } $$
$$ \text { Both are angiospermic flowering plants. } $$
$$ \text { What is common to the species shown in figures } \mathrm{A} \text { and } \mathrm{B} \text { ? } $$
$$ \text { Both the species are conserved in their natural habitats. } $$
How is the presently occurring species extinction different from the earlier mass extinctions?
In earlier time extinction of species occurred due to natural causes or calamities like flood, volcanic eruption, prolonged drought and landslides, etc. While at present human activities are the major cause of species extinction.