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प्रश्न
Pick the odd man out:
विकल्प
duckbill platypus
pomfret
lungfish
peripatus
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उत्तर
pomfret
Explanation:
In Peripatus, characters like segmented body, thin cuticle, and parapodia-like organs are present. Similarly, duck-billed platypus lays eggs like reptiles but shows relationships with mammals too due to the presence of mammary glands and hairs. Lungfish perform respiration with lungs, irrespective of being fish. These examples indicate that mammals are evolved from reptiles and amphibians from fish.
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संबंधित प्रश्न
State the connecting links between Peripatus with Annelida and Arthopoda.
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?
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
How analogy and homology considered as an evidence in support of evolution ?
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
Can the wing of a butterfly and the wing of a bat be considered homologous organs? Why or why not?
Explain with an example for the given, how the following provides evidence in favor of evolution in organisms :
Analogous organs
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
Some dinosaurs had feathers although they could not fly birds have feathers that help them to fly. In the context of evolution, this means that ______
The presence of which of the following types of organs in two organisms indicates that they are derived from the same ancestor?
(a) analogous organs
(b) respiratory organs
(c) digestive organs
(d) homologous organs
You have potato, carrot, radish, sweet potato, tomato and ginger bought from the market in your jute bag. Identify two vegetables to represent the correct homologous structures.
(A) Potato and tomato
(B) Carrot and tomato
(C) Potato and sweet potato
(D) Carrot and radish
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.
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
What do you mean by vestigial structures? Name four vestigial organs found in man.
Appendix : vestigial organ : : Peripatus : ____________
Give scientific reason.
Peripatus is said to be the connecting link between Annelida and Arthropoda.
Write a short note:
Embryological evidences
Complete the flowchart.
What is carbon dating?
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.
Biogenetic law states that ______.
How do you differentiate homologous organs from analogous organs?
Homologous organs are:
Palaeontological evidence for evolution refers to the ______.
Organs having similar functions but different origin and development are known as:
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?
How do we compute the age of a fossil?
How do we compute the age of a rock?
What is the function of the appendix of our digestive system?
Define the term:
Homologous organs
Industrial melanism was highlighted by ______.
Define Palaeontology.
