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प्रश्न
Coelacanth was caught in South Africa. State the significance of the discovery of Coelacanth in the evolutionary history of vertebrates.
उत्तर
Coelacanth was a fish was caught in South Africa in 1938, which was thought to be extinct. These animals were called lobefins which evolved into first amphibians that lived on both land and water. These are considered to be the ancestors of modern days frogs and salamanders.
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संबंधित प्रश्न
(iii) Synergids
(iv) Micropyle
Put a tick mark (✓) against the correct alternative in the following statements
Vegetative propagation is not observed in:
Male and female flowers are present on different plants (dioecious) to ensure xenogamy, in ______.
Which of the following is not a water pollinated plant?
In some plants anther and stigma mature at the same time this condition is called ______.
Which type of pollination does Figure 12.1 indicate?
Which one of the following may require pollinators, but is genetically similar to autogamy?
Correct definition of pollination is ______
What is self-incompatibility?
Name the following:
Aquatic plants which are anemophilous.
