Question

The species diversity of plants on earth is not more than _____________ of the total.
A.2.4%
B.22%
C.8.1%
D.8.5%

Answer 1

Hint: Species diversity is the number of different species that represents a given community.

Complete step by step answer:
-The species diversity of plants 22% which is much less than that of animals (72%)
-More than 70% of the world’s species recorded are animals and only 22% of species are plants. This wide difference in the percentage of species diversity is because animals have adapted themselves more to ensure their survival in changing environments when compared to plants.
-For example, insects and other animals have a well-developed and complex nervous system to control and coordinate their body.
-Hence, species diversity is indirectly the result of evolution and the ability of an organism to adapt. For example, the langurs are a type of monkey in India that have developed adaptations to suit the arid conditions of Rajasthan, the proboscis monkey in south-east Asia has developed a snouted nose for swimming in water.

Hence option B is correct.

Note:
The following are the species diversity of different groups of organisms:
-Vertebrates have 1% of the world’s species diversity.
-Plants have 22% of the world’s species diversity.
-Butterflies and moths constitute 7% of the world’s species diversity.
-Beetles constitute 22% of the world’s species diversity.
-Wasps constitute 8% of the world’s species diversity.
-Flies constitute 8% of the world’s species diversity.
-Fungi have 1% of the world’s species diversity.
-Other insects constitute 1% of the world’s species diversity.
-Other invertebrates constitute 10% of the world’s species diversity.
-Other organisms constitute 6% of the world’s species diversity.
-The species diversity of a group of organisms is indicative of its adaptability and success in the process of evolution.
-There are a total of one million six hundred thousand species in the world.