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प्रश्न
_______ is a connecting link between Annelida and Arthropoda.
विकल्प
Duck-billed platypus
Peripatus
Lungfish
Whale
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उत्तर
Peripatus is a connecting link between Annelida and Arthropoda.
APPEARS IN
संबंधित प्रश्न
State the connecting links between Peripatus with Annelida and Arthopoda.
(a) Select the homologous structures from the combinations given below:
(i) Forelimbs of whales and bats
(ii) Tuber of potato and sweet potato
(iii) Eyes of octopus and mammals
(iv) Thorns of Bougainvillea and tendrils of Cucurbita
(b) State the kind of evolution they represent.
Write the similarity between the wing of a butterfly and the wing of a bat. What do you infer from the above with reference to evolution?
“Two areas of study namely 'evolution' and 'classification' are interlinked'. Justify this statement.
Out of bacteria, spider, fish and chimpanzee, which organism has a better body design in evolutionary terms? Give reason for your answer.
The wings of a housefly and the wings of a sparrow are an example of :
(a) analogous organs
(b) vestigial organs
(c) respiratory organs
(d) homologous organs
There are five animals A, B, C, D and E. The animal A uses its modified forelimbs for flying. The animal B uses its forelimbs for running whereas the animal C uses its forelimbs for grasping. The animal D can live on land as well as in water and uses its forelimbs to prop up the front end of its body when at rest. The animal E which respires by using spiracles and tracheae uses wings for flying but its wings are analogous to the modified forelimbs of animal A.
(a) What could the animals A, B, C, D and E be?
(b) Why are the forelimbs of animals A, B, C, D called homologous organs?
(c) What does the existence of homologous organs in animals A, B, C and D tell us about their ancestors ?
(d) Why are the modified forelimbs of animal A and the wings of animal E called analogous organs?
(e) State whether animals A and E have a common ancestor or not.
Define phylogeny.
Similarities in the initial stages indicate the _______ evidence.
The decaying process of C-14 occurs continuously in dead organisms only.
Write a short note:
Embryological evidences
Biogenetic law states that ______.
Which of these is not a vestigial organ in human beings?
The bones of forelimbs of whale, bat, cheetah and man are similar in structure, because ______.
How do we compute the age of a living tree?
Complete the following diagram:
What is the function of the appendix of our digestive system?
Evolutionary convergence is the development of a ______.
Write avian characters of Archaeopteryx.
Define the term:
Homologous organs
