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Introduction. Circulatory System. The organ system of the body that is responsible for the transport of material throughout the body is called the circulatory system. The materials transported are nutrients, oxygen, carbon dioxide, cells, etc. The medium of transportation is blood.
Important Diagrams For CBSE Class 7 Science. Diagrams, just like formulas and equations, are very important for securing more marks. This is especially true for the annual CBSE Class 7 Exams. Moreover, drawing a neat and labelled diagram is guaranteed to fetch maximum marks in the exams.
Biology Article. Flight Adaptations. Over the aeons, birds have evolved not only wings, but many other adaptations that help them to fly. Birds have a strong, but a lightweight framework of bones. This is achieved by the fusion and elimination of some bones while hollowing the remaining.
The four forces of flight – weight, lift, drag and thrust – affect the flight of birds. Research has revealed that godwits make the longest non-stop flight of any known bird. Explore the work of two scientists who study and track these birds.
Structure of flying segments—thorax, associated chitinous membranous wings and their morphology have been explained including venation. Venation of wing helps in identifying species and also in classifying insects. Direct and indirect flight muscles, which help...
Diagrams are valuable tools in Class 7 Science that help students visualize and understand complex concepts. By familiarizing themselves with these top 10 must-know diagrams, students can enhance their learning experience and develop a deeper understanding of the natural world around them.
1 Μαρ 2017 · Aerodynamics is the way objects move through air. The rules of aerodynamics explain how an airplane is able to fly. Anything that moves through air is affected by aerodynamics, from a rocket blasting off, to a kite flying. Since they are surrounded by air, even cars are affected by aerodynamics.
