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प्रश्न
Similarities in the initial stages indicate the _______ evidence.
विकल्प
Connecting links
Anatomical
Embryological
Palaeontological
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उत्तर
Similarities in the initial stages indicate the Embryological evidence.
APPEARS IN
संबंधित प्रश्न
Mammals : _________ : : Amphibia : Fishes
(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?
Select two pairs from the following which exhibit divergent evolution. Give reasons for your answer.
(i) Forelimbs of cheetah and mammals
(ii) Flippers of dolphins and penguins
(iii) Wings of butterflies and birds
(iv) Forelimbs of whales and mammals
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
An example of homologous organs is
Explain with an example for the given, how the following provides evidence in favor of evolution in organisms :
Fossils
Human tailbone is a vestigial organ. Explain.
The organs which perform different functions but have the same basic structure are known as :
(a) homologous organs
(b) analogous organs
(c) homolytic organs
(d) analytic organs
The presence of which of the following types of organs in two animals indicates that they are not derived from a common ancestor?
(a) homologous organs
(b) excretory organs
(c) analogous organs
(d) reproductive 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
What do we call the degenerated or partially developed useless organs in living organisms? Enlist such organs in human body? How the same organs are useful in other animals?
Write short notes based upon the information known to you.
Embryology
Observe the picture and answer the following questions.
A) Which evidence of evolution is shown in the picture?
B) What can be proven with this proof?
C) Give one more example of evidence of evolution
Complete the following chart:
Very short answer question:
What is vestigeal organ?
Find an odd one out.
The decaying process of C-14 occurs continuously in dead organisms only.
Give scientific reason.
Vertebrates have slowly originated from invertebrates.
Write a short note:
Embryological evidences
Define the evidence of evolution shown in the figure.
Observe the given images and answer the following questions.
- Which evolutionary evidence does it indicate?
- What does it prove?
- State another example of evolutionary evidence.
Write the answers to the questions by observing the figure below.
 |
 |
 |
| (a) | (b) | (c) |
- Write the name of the animal ‘(a)’ in the figure.
- Write the name of the animal ‘(b)’ in the figure.
- Write the name of the animal ‘(c)’ in the figure.
- Which evolutionary evidence is illustrated by this figure?
- Write the definition of that evidence for evolution.
Biogenetic law states that ______.
A human hand, a front leg of a cat, a front flipper of a whale and a bat’s wing look dissimilar and adapted for different functions. What is the name given to these organs?
Homologous organs and vestigial organs are examples of ______ type of evidence in evolution.
Select the correct statement.
Select the CORRECT set of homologous organs.
The fossil remains of Archaeopteryx is a connecting link between ______
Define vestigial organs.
Evolution has exhibited a greater stability of molecular structure when compared with morphological structures. Comment on the statement and justify your opinion.
The presence of gill slits, in the embryos of all vertebrates, supports the theory of ______.
Organs having similar functions but different origin and development are known as:
Give an example for convergent evolution and identify the features towards which they are converging.
You have studied the story of Peppermoths in England. Had the industries been removed, what impact could it have had on the moth population? Discuss.
Write avian characters of Archaeopteryx.
Complete the following conceptual picture:
Give one example of homologous organs found in plants.
Pick the odd man out:
