Question

Which one of the following is an endangered plant?
A. Lycopersicum
B. Dalbergia
C. Cedrus
D. Rauwolfia

Answer 1

Hint: The term endangered species can be defined as the species of animals and plants which are likely to be extinct in near future. Factors such as poaching, loss of habitat, and invasive species are responsible for the species to become endangered.

Complete answer:
Many species of plants and animals are threatened because human activities are growing. Other factors that are responsible for the loss of habitat of plants and animals are deforestation, industrial activities, and the new evolution of new species. Natural factors also play an important role in the survival of plants and animals. Increasing temperature, global warming, and forest fire also aid the species to become extinct. The phrase endangered species suggests that the species is endangered but not extinct. They are rarely found in nature. The global conservation status of many species is listed in the Red List of the International Union for Conservation of Nature (IUCN). Extensive conservation efforts like habitat restoration and captive breeding are done to protect the endangered species. Rauwolfia serpentina is used for medicinal use. Therefore, its number is decreasing day by day. Hence, it has become an endangered plant.
Thus, option D is the correct answer.

Note: Many botanical gardens and wildlife forests are constructed to save the endangered species of plants and animals. There are 29 species of bryophytes evaluated as endangered. The International Union for Conservation of Nature (IUCN) has listed 3654 endangered plant species as of September 2016. 17 percent of all plant species surveyed are listed as endangered.