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प्रश्न
How do you express the meaning of words like race, breed, cultivars or variety?
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उत्तर
- 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.
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संबंधित प्रश्न
The connecting link between ‘ape’ and ‘man’ is _______.
(A) Dryopithecus
(B) Australopithecus
(C) Homo erectus
(D) Homo neanderthalensis
Why are human beings who look so different from each other in terms of size, colour and looks said to belong to the same species?
The fossil history of humans is ______.
The first remarkable human fossil was that of ______.
What is the scientific name of the modern man?
_______ is considered as connecting link between ape and man.
Distinguish between Homo erectus and Neanderthal man
Complete the table based on the special features of Human ancestors showing their cultural and social development.
| Ancestors | Special features |
| Homo erectus | |
| Buried their dead | |
| Made tools from stones |
Identify the human ancestor which showed both ape-like and man-like characters.
______ had cranial capacity almost equal to modern man.
Who constructed flint tools?
What was the brain capacity of Homo habilis?
______ is a direct ancestor of modem man.
Fill in the blanks (i - ii) and select the correct option.
- ______ probably ate meat.
- ______ buried dead bodies properly for the first time in pre-historic man's period.
Identify the character which is most relatable to Neanderthal man?
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 |
A cross between a tall pea-plant (TT) and a short pea-plant (tt) resulted in progenies that were all tall plants because ______
Which of the following was most similar to modern man?
Among Ramapithecus, Australopithecines and Homo habilis - who probably did not eat meat?
Write any eight major changes that occurred in human evolution.
