Advertisements
Advertisements
Question
How do scientists extrapolate the total number of species on Earth?
Solution
Scientists make a statistical comparison of the temperate-tropical species richness of an exhaustively studied group of insects and extrapolate this ratio to other groups of animals and plants to come up with a gross estimate of the total number of species on earth.
APPEARS IN
RELATED QUESTIONS
How do ecologists estimate the total number of species present in the world?
Which of the following is not an invasive alien species in the Indian context?
Where among the following will you find pitcher plant?
What is common to the following plants nepenthes, psilotum, Rauwolfia and acontium?
Which one of the following is an endangered plant species of India?
What is the expanded form of IUCN?
Why are the conventional methods not suitable for the assessment of biodiversity of bacteria?
What could be the possible explanation for greater vulnerability of amphibians to extinction as compared to other animal groups?
Given below is a 'pie chart' representing the global biodiversity:
Proportionate number of species of major taxa.
- Identify (X) and (Y) in the given 'pie chart'.
- "Extinction of species across taxa are not random." Which group amongst the vertebrates is more vulnerable to extinction?
- Give one example of each of the recent extinctions of species in Russia, Mauritius and Australia.
Give three reasons as to why the prokaryotes are not given any figures for their diversity by ecologists.
