Name the parts shown in the diagram.Human jaw - Science and Technology 2

One Line Answer

Name the parts shown in the diagram.
Human jaw



Wisdom teeth

  Is there an error in this question or solution?
Chapter 1: Heredity and Evolution - Name the following


What are vestigial organs?

Give two examples of vestigial organs  in human beings and plants.

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

(A) Sweet potato and potato

(B) Sweet potato and tomato

(C) Carrot and potato

(D) Radish and carrot

Select two pairs from the following which exhibit divergent evolution. Give reasons for your answer.

(i) Forelimbs of cheetah and mammals

(ii) Flippers of dolphins and penguins

(iii) Wings of butterflies and birds

(iv) Forelimbs of whales and mammals

Differentiate between analogy and homology giving one example each of plant and animal respectively.

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

Which one of the following pairs of vegetables is an example of homologous structures?

(A) Potato and sweet potato

(B) Carrot and radish

(C) Carrot and tomato

(D) Tomato and radish

Try to trace the various components of human evolution (hint: brain size and function, skeletal structure, dietary preference, etc.)

Enlist any four sequential evolutionary names of human ancestors.

Give the importance of fossil in support of organic evolution

Explain with an example for the given, how the following provides evidence in favor of evolution in organisms :


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?

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


Some dinosaurs had feathers although they could not fly birds have feathers that help them to fly. In the context of evolution, this means that ______

 The wings of a housefly and the wings of a sparrow are an example of :
(a) analogous organs
(b) vestigial organs
(c) respiratory organs
(d) homologous organs

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

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.

Connecting link

Write the names of those animals in whom the human body organs are functioning.

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

_______ is a connecting link between Annelida and Arthropoda.

Complete the following chart:

The most common types of fossils are ------------------------. 

Draw a labelled diagram of T.S. of a leaf showing Kranz anatomy. 

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.

Very short answer question.

What is vestigeal organ?

Similarities in the initial stages indicate the _______ evidence.

Find an odd one out.

I am a connecting link between reptiles and mammals. Who am I?

Appendix : vestigial organ : : Peripatus : ____________

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

Give scientific reason.

Peripatus is said to be the connecting link between Annelida and Arthropoda.

Give scientific reason.

Duck-billed platypus shows relationship with mammals.

Write a short note:

Embryological evidences

Enlist the evidences of evolution.

Observe the given images and answer the following questions.

  1. Which evolutionary evidence does it indicate?
  2. What does it prove?
  3. State another example of evolutionary evidence.

Which evidence of evolution is shown in the given picture? Explain the importance of this evidence.

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.
  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.

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

Define vestigial organs

Why do all the gametes formed in human females have an X chromosome?

Evolution has exhibited a greater stability of molecular structure when compared with morphological structures. Comment on the statement and justify your opinion.

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:

Fossils are generally found in ______.

What were the characteristics of life forms that had been fossilised?

How do we compute the age of a fossil?

Explain divergent evolution in detail. What is the driving force behind it?

Complete the following diagram:

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.

Evolutionary convergence is the development of a ______.

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?

Pick the odd man out:

Write names of some vestigial organs in the human body.


      Forgot password?
Use app×