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प्रश्न
Skull in humans consists of 22 bones.
पर्याय
True
False
उत्तर
Skull in humans consists of 22 bones- true.
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संबंधित प्रश्न
The species diversity of plants (22 per cent) is much less than that of animals (72 per cent). What could be the explanations to how animals achieved greater diversification?
Explain the effect on the characteristics of a river when urban sewage is discharged into it.
Enlist various types of species diversity.
Why do we need abiotic factors?
Amoeba moves with the help of ______.
True (or) False. If false write the correct answer.
Fishes are aquatic vertebrates.
Number of national parks and sanctuaries in Maharashtra are around ____________ and ____________ respectively.
The extinction of species (flora and fauna) due to human and natural influences is called ______.
Give reason for the following.
Stable biosphere has to be conserved.
Which is not a biotic community among the following?
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Which of the following respiratory pigment is present in the blood of cockroaches?
Among the ecosystem mentioned below where can one bind maximum biodiversity?
Which of the following groups exhibit more species diversity?
The ______ can swim faster than a cheetah.
What is the binomial name?
Mention two features are seen in Aves to aid in flying.
Why is genetic variation important in the plant Rauwolfia vomitoria?
Explain how species diversity can harm ecosystem.
Samson and Dorothy surveyed two islands, ‘A’ and ‘B’. They recorded the relevant data in the following format in their research folder:
| Parameter | Island A | Island B | |
| (a) | Area (A) | 45 × 103 Km2 | 12 × 105 Km2 |
| (b) | Regression co-efficient (Z) | 1 | 1 |
| (c) | Y-intercept | 20 | 10 |
- Derive the species-richness for each island.
- Which island exhibits greater biodiversity? Support your answer with a reason.
