Match the following. Column A Column B 1) Morphological evidences a) Tail-bone or wisdom teeth 2) Paleontological evidences b) Leaf venation c) Fossils - Science and Technology 2

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Match the Columns

Match the following.

Column A Column B
1) Morphological evidences a) Tail-bone or wisdom teeth
2) Paleontological evidences b) Leaf venation
  c) Fossils
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Solution

Column A Column B
1) Morphological evidences b) Leaf venation
2) Paleontological evidences c) Fossils
  Is there an error in this question or solution?
Chapter 1: Heredity and Evolution - Match the following

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Mammals : _________ : : Amphibia : Fishes


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(a) Select the analogous structures from the combination given below:

(i) Forelimbs of whales and bats

(ii) Eyes of octopus and mammals

(iii) Tuber of sweet potato and potato

(iv) Tuber of Bougainvillea and tendrils of Cucurbita

(b) State the kind of evolution they represent


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


Which of the following pairs of two vegetables represent the correct homologous structures?

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(B) Sweet potato and tomato

(C) Carrot and potato

(D) Radish and carrot


With the help of any two suitable examples explain the effect of anthropogenic actions on organic evolution.


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? 


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(d) Name the organs like R and S. Also name the animals which have such organs.


Identify the following pairs as homologous and analogous organs:
(i) Sweet potato and potato
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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 :
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(C) Wings of a butterfly and a bat
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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.

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(B) Carrot and tomato

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Vestigial organ ______ present in human body is proof of evolution.


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Embryology


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Connecting link


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Complete the following chart:


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Very short answer question.

What are homologous organs?


Long answer question.

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The decaying process of C-14 occurs continuously in dead organisms only.


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Give scientific reason.

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Enlist the evidences of evolution.


Define the evidence of evolution shown in the figure.


What is carbon dating?


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  2. How are they formed?
  3. 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)
  1. Write the name of the animal ‘(a)’ in the figure.
  2. Write the name of the animal ‘(b)’ in the figure.
  3. Write the name of the animal ‘(c)’ in the figure.
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Select vestigial organs from the following.


Homologous organs and vestigial organs are examples of ______ type of evidence in evolution.


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Select the CORRECT match.


Select the CORRECT set of homologous organs.


Which of these is not a vestigial organ in human beings?


Define vestigial organs


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