Complete the following diagram: Evidences of Evolution - Science and Technology 2

Advertisements
Advertisements
Chart

Complete the following diagram:

Advertisements

Solution

  Is there an error in this question or solution?
2021-2022 (March) Set 1

APPEARS IN

RELATED QUESTIONS

Mammals : _________ : : Amphibia : Fishes


Differentiate between homology and analogy. Give one example of each.


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? 


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.


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


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


Four students P, Q, R and S differently reported the following set of organs to be analogous :

P. Forelimb of a frog and forelimb of a lizard

Q. Forelimb of a bird and forelimb of a human

R. Wings of a parrot and wings of a butterfly

S. Wings of a bird and wings of a bat

The two students who have reported correctly are :

(A) P and Q

(B) Q and R

(C) R and S

(D) P and S


 An example of homologous organs is


Enlist any four sequential evolutionary names of human ancestors.


Give the importance of fossil in support of organic evolution


Name the scientists who Discovered the fossil of Australopithecus


Explain the evolution of giraffe's neck according to Lamarck's theory of evolution.


Name any two temporary embryonic structures in vertebrates which provide evidence for evolution.


What are homologous organs?


How do homologous organs help in providing evidence for organic evolution?


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


Name two animals having homologous organs and two having analogous organs. Name these organs.

 

Wing of an insect and forelimb of a bird are :
(a) analogous organs
(b) analeptic organs
(c) homologous
(d) homophobic 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


There are five animals A, B, C, D and E. The animal A uses its modified forelimbs for flying. The animal B uses its forelimbs for running whereas the animal C uses its forelimbs for grasping. The animal D can live on land as well as in water and uses its forelimbs to prop up the front end of its body when at rest. The animal E which respires by using spiracles and tracheae uses wings for flying but its wings are analogous to the modified forelimbs of animal A.
(a) What could the animals A, B, C, D and E be?
(b) Why are the forelimbs of animals A, B, C, D called homologous organs?
(c) What does the existence of homologous organs in animals A, B, C and D tell us about their ancestors ?
(d) Why are the modified forelimbs of animal A and the wings of animal E called analogous organs?
(e) State whether animals A and E have a common ancestor or not.


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?


Identify the following pairs as homologous and analogous organs:
(i) Sweet potato and potato
(ii) Eye of octopus and eye of mammals
(iii) Thorns of Bougainvillaea and tendrils of Cucurbits
(iv) Fore limbs of bat and whale


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


What do we call the degenerated or partially developed useless organs in living organisms? Enlist such organs in human body? How the same organs are useful in other animals?


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.


Write short notes based upon the information known to you.

Embryology


Answer the following question.

Explain with suitable examples the importance of anatomical evidence in 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


Answer the following question.
Wisdom teeth : Vestigial organs :: Lungfish : ....................


_______ is a connecting link between Annelida and Arthropoda.


With the help of diagrams, describe emasculation and bagging. 


What do you mean by vestigial structures? Name four vestigial organs found in man.


Choose the correct option of the following question:

Wings of Insect and Birds are examples of :


Explain any three molecular (genetic) evidences in favour of organic evolution.


Define fossils. 


Differentiate between connecting links and the missing links.


Define phylogeny.


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.


Name the parts shown in the diagram.
Human jaw


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


Match the following.

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

Give scientific reason.

Vertebrates have slowly originated from invertebrates.


Give scientific reason.

Duck-billed platypus shows relationship with mammals.


Write a short note:

Embryological evidences


Complete the flowchart.


Enlist the evidences 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.
  4. Which evolutionary evidence is illustrated by this figure?
  5. Write the definition of that evidence for evolution.

Biogenetic law states that ______.


The degenerated and non-functional organs found in an organism are called ______.


A human hand, a front leg of a cat, a front flipper of a whale and a bat’s wing look dissimilar and adapted for different functions. What is the name given to these organs?


How do you differentiate homologous organs from analogous organs?


Select vestigial organs from the following.


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


Select the correct statement.


Select the CORRECT match.


Select the CORRECT set of homologous organs.


Homologous organs are:


Cucurbits do not develop thick and woody stem as they are:


Tendons and ligaments are examples of ______.


Palaeontological evidence for evolution refers to the ______.


Basic principles of embryonic development were pronounced by:


Study of fossils is ______.


Evolutionary convergence is the development of:


The process of mating of individuals, which are more closing related than the average of the population to which they belong is called ______.


The presence of gill slits, in the embryos of all vertebrates, supports the theory of ______.


Which is not a vestigial organ in a man?


Flippers of Penguins and Dolphins are examples of: 


The study of fossil evidence of evolution is called ______


Organs having similar functions but different origin and development are known as:


Which of the following is used as an atmospheric pollution indicator?


Give an example for convergent evolution and identify the features towards which they are converging.


While creation and presence of variation is directionless, natural selection is directional as it is in the context of adaptation. Comment.


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.


What is the function of the appendix of our digestive system?


Find odd one out:


As shown in figure below some organisms that share a common ancestor have features that have different functions, but similar structures.

These are known as ______. Give example.


Write down the difference between homologous and analogous organs.


Find the odd one out:


Explain natural selection with the example of industrial melanism.


Write a note on the significance of Palaeontology.


Define the term:

Homologous organs


Industrial melanism was highlighted by ______.


Industrial melanism in England after 1850 is an excellent example of Natural selection. Explain how?


Complete the following conceptual picture:


Give examples of homologous organs and analogous organs in plants.


Give a definition of Palaeontology.


Share
Notifications



      Forgot password?
Use app×