Practice free Botany NEET multiple-choice questions online with instant answers and detailed explanations. No login required.
How much price has been estimated by the researchers for the fundamental ecosystem services?
page number 254; Ecosystem services; Second paragraph.
Which one of the following types of organisms occupy more than one tropic level in a pond ecosystem?
In a pond ecosystem, fishes occupy the more than one tropic levels.
Identity the odd combination of the habitat and the particular animal concerned :
Dachigam National Park is situated near Dal Lake in Jammu and Kashmir. It is know for conservation of the most endangered Hangul or Kashmir stag in paramount.
One of endangered species of Indian medicinal plants is that of :
Podophyllum is an Indian endengered flora. Its dried roots and rhizomes are used in chronic constipation and fumorous growth.
Probiotics are:
Probiotics are live microorganisms (bacteria or yeasts) that are beneficial for human health, especially for maintaining a healthy gut flora. They are often referred to as 'good' or 'friendly' bacteria and are commonly consumed as dietary supplements or found in fermented foods like yogurt, kefir, and kombucha.
Which one of the following is not included under in situ conservation?
(b) Botanical gardens (i.e., institutions that maintain living plant collections representing a large number of species, genera and families) are the means of ex situ conservation (i.e., conservation outside the habitats).
Insitu conservation involves the conservation of genetic resources through their maintenance within natural or even human-made ecosystems in which they occur. It includes National parks, Sanctuaries, Biosphere reserves, Nature Reserves, Natural Monuments, Cultural Landscapes etc.
Which one has the largest species variety in India ?
(c)In India, rice has the largest species diversity or variety.
India is one of the twelve megadiversity countries with ______ of genetic resources of the world.
(d) : The total number of species estimated is about 1.74 million. Out of these, the number of known species in India is 1,42,000 or roughly 8.1% of the total though India has only 2.4% land area. India with about 45000 species of plants and twice as many species of animals is one of the 12 megadiversity countries of the world
Which of the following is not an invasive species?
(b): Non-native or alien species are often introduced inadvertently for their economic and other uses. They often become invasive and drive away the local species. These species are considered to be second major cause of extinction of species (the first being habitat destruction). Lantana camara has replaced many species in forests of Central India. Parthenium hystero-phorus has pushed out several herbs and shrubs from open places in the plains. Water hyacinth (Eichhornia crassipes) was introduced in Indian waters to reduce pollution. clogged water bodies including wetlands at many places resulting in death of several aquatic plants and animals. Nelumbo (lotus) is not an invasive species.
The total number of biodiversity hotspots in the world are
(b) : Biodiversity hotspots are the areas of high endemism and high levels of species richness. Initially 25 biodiversity hotspots were identified, but subsequently nine more have been added to list bringing the total number of biodiversity hotspots in the world to 34.
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