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प्रश्न
Find an odd one out.
पर्याय
Leaf venation
Size of seeds
Leaf petiole
Leaf shape
उत्तर
Size of seeds
APPEARS IN
संबंधित प्रश्न
Mammals : _________ : : Amphibia : Fishes
What are vestigial organs?
(a) Select the analogous structures from the combination given below:
(i) Forelimbs of whales and bats
(ii) Eyes of octopus and mammals
(iii) Tuber of sweet potato and potato
(iv) Tuber of Bougainvillea and tendrils of Cucurbita
(b) State the kind of evolution they represent
With the help of any two suitable examples explain the effect of anthropogenic actions on organic evolution.
Differentiate between analogy and homology giving one example each of plant and animal respectively.
Which of the following is a correct set of homologous organs?
(a) Forelimbs of frog, bird and lizard
(b) Spine of cactus and thorn of bougainvillea
(c) Wings of bat and wings of butterfly
(d) Wings of a bird and wings of a bat
Explain the terms analogous and homologous organs with examples.
Find out from newspapers and popular science articles any new fossil discoveries or controversies about evolution.
Explain with an example for the given, how the following provides evidence in favor of evolution in organisms :
Analogous organs
Explain with an example for the given, how the following provides evidence in favor of evolution in organisms :
Fossils
Name the scientists who Discovered the fossil of Australopithecus
Explain the evolution of giraffe's neck according to Lamarck's theory of evolution.
Human tailbone is a vestigial organ. Explain.
The forelimbs of a frog, a bird and a man show the same basic design (or basic structure) of bones. What name is given to such organs?
The organs which perform similar functions but have different basic structure are called :
(a) asymmetric organs
(b) analogous organs
(c) homologous organs
(d) homophonic organs
Identify the following pairs as homologous and analogous organs:
(i) Sweet potato and potato
(ii) Eye of octopus and eye of mammals
(iii) Thorns of Bougainvillaea and tendrils of Cucurbits
(iv) Fore limbs of bat and whale
_______ is a connecting link between Annelida and Arthropoda.
Choose the correct option of the following question:
Wings of Insect and Birds are examples of :
Answer the following question:
What are homologous structures? Give an example. Is it necessary that homologous structures always have a common ancestor? Justify your answer.
Very short answer question:
What is vestigeal organ?
I am a connecting link between reptiles and mammals. Who am I?
Appendix : vestigial organ : : Peripatus : ____________
Complete the flowchart.
Define the evidence of evolution shown in the figure.
Which evidence of evolution is shown in the given picture? Explain the importance of this evidence.
Explain any five types of evidence that support the theory of evolution.
Select the CORRECT set of homologous organs.
- Define vestigial organs.
- Write names of any two vestigial organs in the human body.
- Write name of those animals in which these vestigial organs are functional.
Evolution has exhibited a greater stability of molecular structure when compared with morphological structures. Comment on the statement and justify your opinion.
Homologous organs are:
Cucurbits do not develop thick and woody stem as they are:
Evolutionary convergence is the development of:
The process of mating of individuals, which are more closing related than the average of the population to which they belong is called ______.
The study of fossil evidence of evolution is called ______
Fossils are generally found in ______.
Did aquatic life forms get fossilised? If, yes where do we come across such fossils?
How do we compute the age of a living tree?
