English
Maharashtra State BoardSSC (English Medium) 10th Standard

Similarities in the initial stages indicate the _______ evidence. - Science and Technology 2

Advertisements
Advertisements

Question

Similarities in the initial stages indicate the _______ evidence.

Options

  • Connecting links

  • Anatomical

  • Embryological

  • Palaeontological

MCQ
Fill in the Blanks
Advertisements

Solution

Similarities in the initial stages indicate the Embryological evidence.

shaalaa.com
  Is there an error in this question or solution?
Chapter 1: Heredity and Evolution - Choose the correct option

APPEARS IN

SCERT Maharashtra Science and Technology 2 [English] 10 Standard SSC
Chapter 1 Heredity and Evolution
Choose the correct option | Q 2

RELATED QUESTIONS

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


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.


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


Find out from newspapers and popular science articles any new fossil discoveries or controversies about evolution.


Enlist any four sequential evolutionary names of human ancestors.


Name the scientists who Discovered the fossil of Australopithecus


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


Differentiate between analogous and homologous structures.


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 animals indicates that they are not derived from a common ancestor?
(a) homologous organs
(b) excretory organs
(c) analogous organs
(d) reproductive 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.


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?


With the help of diagrams, describe emasculation and bagging. 


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.


Very short answer question:

What is vestigeal organ?


______ is a vestigial organ in human beings.


Complete the flowchart.


What is carbon dating?


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 ______.


Where is carbon dating used?


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


Palaeontological evidence for evolution refers to the ______.


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


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


Animal husbandry and plant breeding programmes are the examples of ______.


Fossils are generally found in ______.


How do we compute the age of a living tree?


How do we compute the age of a rock?


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


The evolutionary story of moths in England during industrialisation reveals, that 'evolution is apparently reversible'. Clarify this statement.


Find the odd one out:


Industrial melanism was highlighted by ______.


Define Palaeontology.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×