Advertisements
Advertisements
प्रश्न
Appendix : vestigial organ : : Peripatus : ____________
Advertisements
उत्तर
Appendix : vestigial organ : : Peripatus : Connecting Link
APPEARS IN
संबंधित प्रश्न
Which of the following pairs of two vegetables represent the correct homologous structures?
(A) Sweet potato and potato
(B) Sweet potato and tomato
(C) Carrot and potato
(D) Radish and carrot
Human tailbone is a vestigial organ. Explain.
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
Wing of an insect and forelimb of a bird are :
(a) analogous organs
(b) analeptic organs
(c) homologous
(d) homophobic organs
One pair of organs in the following animals are not homologous. This is :
(a) forelimbs in humans and lizard
(b) forelimbs in lizard and frog
(c) wings in butterfly and bat
(d) wings in bat and bird
X, Y, and Z are three animals. The animal X can fly but animal Y can only run on ground or walls. The forelimbs of animals X and Y have the same basic design but they are used for different purposes such as flying and running respectively. The animal Z became extinct an long time ago. The study of fossils of Z tells us that it had some features like those of X and some like those of Y. In fact, Z is said to form a connecting link in the evolutionary chain of X and Y.
(a) What could the animals X, Y and Z be?
(b) What name is given to the forelimbs like those of X and Y which have the same basic design but different functions?
(c) Name one feature in which Z resembled X.
(d) Name one feature in which Z resembled Y.
(e) Which is the correct evolutionary chain involving X, Y and Z : X → Z → Y or Y → Z → X?
The organs P and Q of two animals have different structures but similar functions. On the other hand, the two organs R and S of two other animals have the same basic structure but different functions.
(a) What are the organs like P and Q known as?
(b) Name the organs like P and Q. Also name the animals which have such organs.
(c) What are the organs like R and S called?
(d) Name the organs like R and S. Also name the animals which have such organs.
Select a set of homologous organs from the following:
(A) Wings of a bat and wings of a butterfly
(B) Wings of a pigeon and wings of a bat
(C) Wings of a butterfly and wings of a pigeon
(D) Forelimbs of a duck, forelimbs of a cow and forelimbs of a lizard
Draw a labelled diagram of T.S. of a leaf showing Kranz anatomy.
Differentiate between connecting links and the missing links.
Define phylogeny.
Very short answer question:
What is vestigeal organ?
Explain the importance of Anatomical evidences with examples.
I am a connecting link between reptiles and mammals. Who am I?
Match the following.
| Column A | Column B |
| 1) Morphological evidences | a) Tail-bone or wisdom teeth |
| 2) Paleontological evidences | b) Leaf venation |
| c) Fossils |
Define the evidence of evolution shown in the figure.
What is carbon dating?
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.
Select the correct statement.
Select the CORRECT match.
Select the CORRECT set of homologous organs.
Evolution has exhibited a greater stability of molecular structure when compared with morphological structures. Comment on the statement and justify your opinion.
Tendons and ligaments are examples of ______.
The presence of gill slits, in the embryos of all vertebrates, supports the theory of ______.
Flippers of Penguins and Dolphins are examples of:
Appearance of antibiotic-resistant bacteria is an example of ______.
Fossils are generally found in ______.
How do we compute the age of a rock?
Find the odd one out:
Define the term:
Homologous organs
Industrial melanism in England after 1850 is an excellent example of Natural selection. Explain how?
Give one example of homologous organs found in plants.
Define Palaeontology.
Write names of some vestigial organs in the human body.
