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प्रश्न
Similarities in the initial stages indicate the _______ evidence.
पर्याय
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
What are vestigial organs?
Given below is the list of vegetables available in the market. Select from these the two vegetables having homologous structures:
Potato, sweet potato, ginger, radish, tomato, carrot, okra (Lady’s finger)
(A) Potato and sweet potato
(B) Radish and carrot
(C) Okra and sweet potato
(D) Potato and tomato
With the help of any two suitable examples explain the effect of anthropogenic actions on organic evolution.
If you are asked to select a group of two vegetables, out of the following, having homologous structures which one would you select?
(a) Carrot and radish
(b) Potato and sweet potato
(c) Potato and tomato
(d) Lady finger and potato
Differentiate between analogy and homology giving one example each of plant and animal respectively.
An example of homologous organs is
Give the importance of fossil in support of organic evolution
Explain with an example for the given, how the following provides evidence in favor of evolution in organisms :
Analogous organs
Name any two temporary embryonic structures in vertebrates which provide evidence for evolution.
What are homologous organs?
How do homologous organs help in providing evidence for organic evolution?
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
Write short notes based upon the information known to you.
Embryology
Write the names of those animals in whom some vestigial organs in human body are functioning.
Explain with suitable examples importance of anatomical evidence in evolution.
Answer the following question.
Wisdom teeth : Vestigial organs :: Lungfish : ....................
“Appearance of melanised moths post-industrialisation in England is a classic example of evolution by natural selection.” Explain.
Differentiate between connecting links and the missing links.
Find an odd one out.
Appendix : vestigial organ : : Peripatus : ____________
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
Observe the following images and answer the questions.
- Which evolutionary evidences are indicated in the given picture?
- How are they formed?
- Which method is used to measure their age or their time?
Explain any five types of evidence that support the theory of evolution.
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.
How do you differentiate homologous organs from analogous organs?
Select vestigial organs from the following.
Define vestigial organs.
Cucurbits do not develop thick and woody stem as they are:
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.
Complete the following diagram:
As shown in figure below some organisms that share a common ancestor have features that have different functions, but similar structures.
These are known as ______. Give example.
Explain natural selection with the example of industrial melanism.
Define the term:
Homologous organs
Pick the odd man out:
