English
Karnataka Board PUCPUC Science 2nd PUC Class 12

How do you express the meaning of words like race, breed, cultivars or variety?

Advertisements
Advertisements

Question

How do you express the meaning of words like race, breed, cultivars or variety?

Short/Brief Note
Advertisements

Solution

  • Race is a group of people who share similar and distinct physical characteristics.
  • A group of animals related by descent and similar in most characters like general appearance, features, size, configuration, etc., are said to belong to a breed.
  • A cultivar is a plant or grouping of plants selected for desirable characteristics that can be maintained by propagation.
  • A taxonomic category that ranks below species, its members differing from others of the same species in minor but heritable characteristics is called variety.
shaalaa.com
  Is there an error in this question or solution?
Chapter 7: Evolution - SHORT ANSWER [Page 50]

APPEARS IN

NCERT Exemplar Biology Exemplar [English] Class 12
Chapter 7 Evolution
SHORT ANSWER | Q 9. | Page 50

Video TutorialsVIEW ALL [1]

RELATED QUESTIONS

Distinguish between ape and man.


Write the names of the following:

A 2 mya primate that lived in East African grasslands


State whether the following statement is true or false :
Human beings have evolved from chimpanzees.


Identify the pre-human ancestor.


The range of cranial capacities in the following ancestral forms were

Australopithecus ______.


Evolution is an ever ______ process.


Whose fossils were discovered at the site of Shivalik hills, India?


The Neanderthal man had the brain capacity of ____________.


All are major changes that took place in evolution of man, EXCEPT


Identify the CORRECT match.


Match column - I with column - II and select the correct option.

  Column - I   Column - II
(a) Propliopithecus (i) Miocene
(b) Homoerectus pekinensis (ii) Early Pleistocene
(c) Dryopithecus (iii) Middle Pleistocene
(d) Australopithecus (iv) Oligocene

The largest cranial capacity was found in ______.


Which of the following was most similar to modern man?


What was the most significant trend in the evolution of modern man (Homo sapiens) from his ancestors?


The primate which existed 15 miilion, years ago, among these was ______. 


At which stage during evolution did human use hides to protect their bodies and buried their dead?


Match the columns:

  Human Stage   Cranial Capacity
(1) Homo sapiens (a) 650-800 cc
(2) Homo neanderthal (b) 900 cc
(3) Homo habilis (c) 1400 cc
(4) Homo erectus (d) 1450 cc

Distinguish between Australopithecus and Cro-Magnon (Chin).


What is the evolutionary significance of the transition from forest dwelling to grassland habitation?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×