Free Biodiversity And Conservation (Daily Quiz: 1) NEET Biology Questions & Answers with Detailed Explanation & Full Review

Answer: (d)

An endangered species is a population of an organism which are at risk of becoming extinct because it is either a few in number or threatened by changing environmental or predation parameters. Podophyllum is such an endangered species of Indian medicinal plants. They contain, podophyllotoxin and podophyllin that is used as a purgative and as a cytostatic. They are also grown as ornamental plants for their attractive foliage and flowers. Extracts of plants are used for genital warts and some skin cancers.

Answer: (d)

Sacred grove is an example of in situ conservation of forests and wildlife especially rare and threatened species. These forest patches are found around places of worship which are held in high esteem by tribal communities. They are the most undisturbed forest patches which are often surrounded by highly degraded landscapes. Not a single branch is allowed to be cut from these forests. As a result many endemic species which are rare or have become extinct elsewhere can be seen to flourish here. Such sacred groves are found in Khasi and Jaintia hills of Meghalaya, Aravalli hills of Rajasthan, Western ghat regions of Karnataka, Maharashtra, Sarguja, Chanda and Bastar areas of Madhya Pradesh.

Answer: (d)

• Dodo - Mauritius
• Quagga - Africa
• Thylacine - Australia
• Stellar's sea cow - Russia
• Rest of options are incorrect

Answer: (c)

Shifting cultivation is not used for ex situ plant conservation. It results into deforestation. On the other hand, botanical gardnes, seed banks and field gene banks are used as ex situ methods for conservation of plants.