Permian extinction...
Which of the following statements about the Permian extinction is FALSE?
A. |
An estimated 95% of all marine species were lost during the event. |
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B. |
Adaptive radiations of surviving groups occurred afterwards. |
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C. |
An estimated 70% of all terrestrial vertebrate species were lost during the event. |
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D. |
It occurred around 250 million years ago. |
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E. |
It caused the extinction of the dinosaurs. |
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Which of the following statements about taxonomy is FALSE?
|
Permian extinction didn't cause the extinction of dinosaurs.
Because, Permian extinction has taken place around 250 million
years ago, whereas dinosaurs have undergone extinction 65 million
years ago. This extinction is known as the Cretaceous–Tertiary
(K–T) extinction.
Hence, option E is the correct answer.
Organisms of the same family share more characters than the
Organisms belonging to different classes of the same phylum,
because family is lower group under class and in hierarchy of
classification more similarities between Organisms are observed in
lower taxa than in upper taxa.
Hence, option A is the correct answer.
Cyanobacteria-- >unicellular eukaryotic algae---
>multicellular algae---> land plants is the correct
order.
Hence option D is the correct answer.
Tiktaalik is a sarcopterygian or lobe finned fish.
Hence option B is the correct answer.
Panda's thumb is not a vestigeal organ. It is used for grasping
bamboo by Panda.
Hence, option E is the correct answer.
Homologous structures may or may not be functionally similar,
but they share the same ancestral origin.
Hence, option B is the correct answer.
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