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Question
Find an odd one out.
Options
Leaf venation
Size of seeds
Leaf petiole
Leaf shape
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Solution
Size of seeds
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RELATED QUESTIONS
Differentiate between homology and analogy. Give one example of each.
(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.
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
“Two areas of study namely 'evolution' and 'classification' are interlinked'. Justify this statement.
Differentiate between analogy and homology giving one example each of plant and animal respectively.
How analogy and homology considered as an evidence in support of evolution ?
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 organs which perform similar functions but have different basic structure are called :
(a) asymmetric organs
(b) analogous organs
(c) homologous organs
(d) homophonic 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
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.
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
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.
Vestigial organ ______ present in human body is proof of evolution.
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:
Draw a labelled diagram of T.S. of a leaf showing Kranz anatomy.
Define fossil.
Long answer question.
Would you consider wings of butterfly and bat as homologous or analogous and why?
Explain the importance of Anatomical evidences with examples.
Find an odd one out.
The decaying process of C-14 occurs continuously in dead organisms only.
Give scientific reason.
Duck-billed platypus shows relationship with mammals.
Write a short note:
Embryological evidences
Enlist the evidences of evolution.
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.
Biogenetic law states that ______.
Select the CORRECT set of homologous organs.
Which of these is not a vestigial organ in human beings?
Homologous organs are:
Cucurbits do not develop thick and woody stem as they are:
The presence of gill slits, in the embryos of all vertebrates, supports the theory of ______.
I am the connecting link of annelida and arthropoda. What is my name?
Give a scientific reason.
Morphological evidences suggest that dog, sheep and wolf have a common origin.
Find odd one out:
Industrial melanism in England after 1850 is an excellent example of Natural selection. Explain how?
Define Palaeontology.
