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प्रश्न
Find an odd one out.
पर्याय
Leaf venation
Size of seeds
Leaf petiole
Leaf shape
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उत्तर
Size of seeds
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संबंधित प्रश्न
Give two examples of vestigial organs in human beings and plants.
Study the following statements:-
I. Wings of birds and wings of bats are homologous organs.
II. Wings of birds and wings of insects are modified forelimbs.
III. Wings of birds and wings of insects are analogous organs.
IV. Wings of birds and forelimbs of horse are homologous organs.
The correct statements are
(A) I and II
(B) II and III
(C) III and IV
(D) I and IV
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
State a reason for the increased population of dark coloured moths coinciding with the loss of lichens (on tree barks) during industrialization period in England.
Four students A, B, C and D reported the following set of organs to be homologous. Who is correct ?
(A) Wings of a bat and a butterfly
(B) Wings of a pigeon and a bat
(C) Wings of a pigeon and a butterfly
(D) Forelimbs of cow, a duck and a lizard
An example of homologous organs is
Enlist any four sequential evolutionary names of human ancestors.
Explain the evolution of giraffe's neck according to Lamarck's theory of evolution.
What are homologous organs?
Human tailbone is a vestigial organ. Explain.
Select and write analogous structures from the list given below :
1) Wings of butterfly and birds
2) Vertebrate hearts
3) Tendrils of Bougainvillea and Cucurbita
4) Tubers of sweet potato and potato
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
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
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
In a class, students were asked to observe the models/slides/pictures of the skeletons of forelimbs and wings of different organisms. After the observations the students made the following groups of homologous structures. Select the correct group :
(A) Wings of a bird and a butterfly
(B) Wings of a pigeon and a bat
(C) Wings of a butterfly and a bat
(D) Forelimbs of a cow, a duck and a lizard
Read the following statement and justify same in your own words with the help of suitable example.
There is evidences of fatal science among chordates.
Write the names of those animals in whom some vestigial organs in human body are functioning.
Explain any three molecular (genetic) evidences in favour of organic evolution.
Differentiate between connecting links and the missing links.
Long answer question.
Would you consider wings of butterfly and bat as homologous or analogous and why?
Similarities in the initial stages indicate the _______ evidence.
______ is a vestigial organ in human beings.
Name the parts shown in the diagram.
Human jaw
Complete the flowchart.
Enlist the evidences of evolution.
Which of these is not a vestigial organ in human beings?
Why do all the gametes formed in human females have an X chromosome?
Palaeontological evidence for evolution refers to the ______.
The study of fossil evidence of evolution is called ______
Organs having similar functions but different origin and development are known as:
Analogous organs arise due to ______.
Appearance of antibiotic-resistant bacteria is an example of ______.
Complete the following diagram:
I am the connecting link of annelida and arthropoda. What is my name?
What is the function of the appendix of our digestive system?
Give one example of homologous organs found in plants.
Define Palaeontology.
