Convergent Evolution

Q. The eye of octopus and eye of cat show different patterns of structure, yet they perform a similar function. This is an example of

1. Homologous organs that have evolved due to convergent evolution
2. Analogous organs that have evolved due to divergent evolution
3. Homologous organs that have evolved due to divergent evolution
4. Analogous organs that have evolved due to convergent evolution

Q. Which of the following is true for potato and sweet potato?

1. Sweet potato is root modification and potato is stem modification
2. They both show convergent evolution
3. They both show example of analogy
4. All statements are true

Q.

Can humans evolve to live underwater?

Q. Which of the following pairs of organs represent adaptive convergence?

1. Forelimbs of human and horse
2. Wings of bird and bat
3. Flippers of penguins and dolphins
4. Both a and c

Q. Analogous structures are a result of :

1. Shared ancestry
2. Divergent evolution
3. Stabilizing selection
4. Convergent evolution

Q. Can I have a description of evolution of plants which is mentioned in NCERT textbook! Can you please help me to get it!!!

Q. Given: 1=natural selection; 2 = variations and their inheritance: 3 = survival of the fittest; 4 = struggle for existence. According to Darwinism, which of the following represents the correct sequence of events in the origin of new species?

1. 1, 2, 3, 4
2. 2, 3, 1, 4
3. 3, 4, 1, 2
4. 4, 2, 3, 1

Q. Functional similarities in organisms with different evolutionary origins indicates

1. Microevolution
2. Macroevolution
3. Divergent evolution.
4. Convergent evolution

Q.

Are flippers of penguin and dolphin homologous or analogous? What type of evolution has brought such a similarity in them?

Q. What is common to whale, seal, and shark?

1. Homoiothermy
2. Seasonal migration
3. Thick subcutaneous fat
4. Convergent evolution

Q.

Two-chambered heart occurs in

1. Crocodiles

2. Fish

3. Aves

4. Amphibians

Q. Select the correct set of structures which result from convergent evolution in options given below.

1. Forelimbs of horse and flippers of whale
2. Thorns of Bougainvillea and tendrils of Cucurbita
3. Heart of frog and flying fish
4. Eye of the octopus and mammals

Q. Tasmanian wolf and placental wolf appear similar due to:

1. Chemical evolution
2. Divergent evolution
3. Biochemical evolution
4. Convergent evolution

Q.

‘‘During the course of evolution, organs or features may be adapted for new functions.’’ Explain this fact by choosing an appropriate example.

Q. Define atavism with an example.

Q.

Diversity of living organism is due to

1. Mutation

2. Gradual changes

3. Long term evolutionary change

4. Short term evolutionary change

Q.

Wings of birds and wings of flies are the examples of:

1. Homologous organs

2. Analogous organs

3. Evolutionary organs

4. Paralogous organs

Q.

Assertion: Tadpole has a bird-like form, tail and gills.

Reason: The tadpole stage is the recapitulation of the fish-like ancestor of the frog in the latter life history.

Read the assertion and reason statements carefully and answer the question on the basis of the following options.

1. Assertion is True, Reason is True; Reason is a correct explanation for Assertion.

2. Assertion is True, Reason is True; Reason is not a correct explanation for Assertion.

3. Assertion is True, Reason is False.

4. Assertion is False, Reason is True.

Q. Identify the examples of convergent evolution from the following.

Q. Tasmanian wolf and placental wolf appear similar due to:

1. Chemical evolution
2. Divergent evolution
3. Biochemical evolution
4. Convergent evolution

Q.

Using various resources such as your school library or the internet and discussions with your teacher, trace the evolutionary stages of any one animal say horse.

Q. "Sweet potato tubers and potato tubers are the result of convergent evolution." Justify the statement

Q. How many combinations from the following show convergent evolution?
(a) Mole - Marsupial mouse
(b) Lemur - Spotted cuscus
(c) Anteater - Numbat
(d) Mole - Mouse
(e) Lemur - Numbat
(f) Numbat - Spotted cuscus

1. 4
2. 5
3. 6
4. 3

Q. Wings of pigeon, bat and mosquito shows

1. Convergent evolution
2. Atavism
3. Mutation
4. Divergent evolution

Q. Which one of the following options gives one correct example each of convergent evolution and divergent evolution?

1. Eyes of octopus and mammals, Bones of forelimbs of vertebrates
2. Bones of forelimbs of vertebrates, Wings of butterfly and birds
3. Thorns of Bougainvillea and tendrils of Cucurbita, Wings of butterfly and birds
4. Thorns of Bougainvillea and tendrils of Cucurbita, Eyes of octopus and mammals

Q. Identify the examples of convergent evolution from the following.
(i) Flippers of penguins and dolpins
(ii) Eyes of octopus and mammals
(iii) Vertebrate brains

Q. Convergent evolution is illustrated by

1. Starfish and Cuttle fish
2. Dogfish and Whale
3. Rat and Dog
4. Bacterium and Protozoan

Q. Assertion :Analogous organs are a result of divergent evolution. Reason: Eyes of octopus and mammals depict divergent evolution.

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
3. Assertion is correct but Reason is incorrect
4. Both Assertion and Reason are incorrect

Q. Convergent evolution is illustrated by :

1. Bacterium and protozoan
2. Starfish and cuttle fish
3. Dogfish and whale
4. Rat and dog

Q. Which one of the following option gives one correct example each of convergent evolution and divergent evolution?

1. Convergent evolution : Eyes of octopus and mammals; Divergent evolution : Bones of forelimbs of vertebrates
2. Convergent evolution : Thorns of Bougainvillia andtendrils; Divergent evolution : Wings of butterflies and ofbirds
3. Convergent evolution : Bones of forelimbs of vertebrates; Divergent evolution : Wings of butterfly and birds
4. Convergent evolution : Thorns of Bougainvillia andtendrils; Divergent evolution : Eyes of Octopus and ofmammals