Which of the following is not an invasive alien species in the Indian context?
a. Lantana
b. Cynodon
c. Parthenium
d. Eichhornia
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Elaborate how invasion by an alien species reduces the species diversity of an area
Some possible explanations are that the alien species may be i. Vigorously growing and compete with the natural plants for minerals, water etc. The less vigorous local species may be eliminated. ii....
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Elaborate how invasion by an alien species reduces the species diversity
Some possible explanations are that the alien species may be i. Vigorously growing and compete with the natural plants for minerals, water etc. The less vigorous local species may be eliminated. ii....
1 Answers 1 views
(a) Indiscriminate human activities such as alien species invasion, fragmentation and habitat loss have accelerated the loss of biodiversity.
(a) Alien species invasion When alien species are introduced unintentionally / deliberately for whatever purpose , some of them turn invasive and cause decline / extinction of indigenous species eg. - the...
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In the context of ancient Indian society which one of the following terms does not belong to the category of the other three?
(c) Kosa was used for treasury and the rest of the three terms were related to family.
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In the context of Indian economy, consider the following pairs: Term Most Appropriate description
(b) Recession is slow down in effective demand for goods and services slow down in the economy implies a short run decline in the growth rate.
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In the context of Indian economy, which of the following is/are the purpose/purposes of ‘Statutory Reserve Requirements’?
(b) Because Reserve Requirements are designed as “precautionary measures” and not to stop banks from “excessive” profit. This eliminates (c) and (d)
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Extinction of a weaker species by an aggressive alien species is the results of
(a) Endemism of weaker species Habitat loss is the process by which a natural habitat becomes incapable of supporting its native species. Domino effect: significant change in the abundance of one species...
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Invasive species are dangerous because (a) they are almost all predators, disturbing ecological relationships by eating other species.
(c) the native species have not evolved with these organisms.
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The risk of introducing a natural enemy to control an invasive species is that
(b) the natural enemy might also become a pest.
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Alien species that cause the most harm are those that (a) struggle to fit into new ecosystems and eventually die out.
(c) become invasive
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