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CBSE Class 12-science Answered

Why are mammals the most successful animals on Earth? 
Asked by Topperlearning User | 16 Jun, 2014, 04:14: PM
answered-by-expert Expert Answer

The mammals are the most successful animals on Earth because they can maintain a constant body temperature with high range of tolerance whether in Antarctica or in the Sahara desert.

Answered by | 16 Jun, 2014, 06:14: PM

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CBSE 12-science - Biology
Why are mammals the most successful animals on Earth? 
Asked by Topperlearning User | 16 Jun, 2014, 04:14: PM
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CBSE 12-science - Biology
Write four characteristics of a biotic community. 
Asked by Topperlearning User | 16 Jun, 2014, 04:14: PM
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CBSE 12-science - Biology
State one difference between biotic community and ecosystem.
Asked by Topperlearning User | 16 Jun, 2014, 04:14: PM
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CBSE 12-science - Biology
Write adaptations of submerged, rooted hydrophytes.
Asked by Topperlearning User | 16 Jun, 2014, 04:14: PM
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CBSE 12-science - Biology
Describe habitat and ecological niche.
Asked by Topperlearning User | 16 Jun, 2014, 04:14: PM
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CBSE 12-science - Biology
Explain why very small animals are rarely found in polar regions. 
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CBSE 12-science - Biology
Bear hibernates whereas some species of zooplankton enter diapause to avoid stressful external conditions. How are these two ways different from each other?  
Asked by Topperlearning User | 16 Jun, 2014, 04:14: PM
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CBSE 12-science - Biology
What is aerenchyma? Mention any two specific functions of this tissue in hydrophytes. 
Asked by Topperlearning User | 16 Jun, 2014, 04:14: PM
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CBSE 12-science - Biology
How do organisms cope with stressful external conditions which are localised or of short duration?
Asked by Topperlearning User | 16 Jun, 2014, 04:14: PM
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CBSE 12-science - Biology
How does the human body maintain constant temperature both in summers and winters? Explain.
Asked by Topperlearning User | 16 Jun, 2014, 04:14: PM
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