why there is no video for bio subject.how can i understand bio
Asked by arshiya | 16th Nov, 2014, 09:24: PM
Thanks for asking us a question in Ask the Expert section of TopperLearning.com.
Currently, there are no videos in Biology for Class 11 and 12. We will soon update concept based videos with detailed explanation of the concept for better understanding of the user. As of now, you can refer to our question bank and textbook solutions which cover all the important concepts of Biology of Class 11 and 12.
Answered by Sheetal Kolte | 17th Nov, 2014, 11:17: AM
- Why are mammals the most successful animals on Earth?
- Write four characteristics of a biotic community.
- State one difference between biotic community and ecosystem.
- Write adaptations of submerged, rooted hydrophytes.
- Describe habitat and ecological niche.
- Explain why very small animals are rarely found in polar regions.
- Bear hibernates whereas some species of zooplankton enter diapause to avoid stressful external conditions. How are these two ways different from each other?
- What is aerenchyma? Mention any two specific functions of this tissue in hydrophytes.
- How do organisms cope with stressful external conditions which are localised or of short duration?
- How does the human body maintain constant temperature both in summers and winters? Explain.
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