What are the 5 main functions of the nervous system? Central Nervous System – what does the brain and spinal cord do? maintaining homeostasis. interpreting sensory information. creating motor responses (movement) learning. thinking. talking. What are the main functions of the peripheral nervous system? The PNS has three basic functions: (1) conveying motor commands to […]
What should a 3 year old be able to count?
What electromagnetic waves can be used for communication?
What electromagnetic waves can be used for communication? Radio waves are used for communication such as television and radio. Radio waves are transmitted easily through air. They do not cause damage if absorbed by the human body, and they can be reflected to change their direction. These properties make them ideal for communications. Which wave […]
What is a simple food chain?
What is a simple food chain? A food chain is a linear sequence of organisms through which nutrients and energy pass as one organism eats another. In a food chain, each organism occupies a different trophic level, defined by how many energy transfers separate it from the basic input of the chain. What is bioaccumulation […]
Is Class 9 syllabus reduced?
Is Class 9 syllabus reduced? CBSE syllabus for all subjects of class 9 has been reduced for the academic session 2020-2021. Check here the deleted portion of the syllabus of all major subjects of class 9. This deleted portion will not be included in the internal assessments and the year-end exams to be conducted in […]
Why do I cry when I yawn?
How does shape affect diffusion?
How does shape affect diffusion? Diffusion is like going through a net or sieve. Smaller sizes and shapes pass through more easily than large ones. What is the relationship between cell size and diffusion? The surface-to-volume ratio of a sphere is 3/r; as the cell gets bigger, its surface-to-volume ratio decreases, making diffusion less efficient. […]
Is rear-wheel drive good?
Is rear-wheel drive good? RWD vehicles handle much better than front-wheel drive vehicles and you will notice the difference in curves, turns, and when navigating through traffic situations. Traction won’t be as good, especially in wet or snowy road conditions. Is rear wheel drive bad in rain? As anyone who has owned one will tell […]
What are the 6 basic elements of music?
What are the 6 basic elements of music? This series introduces the six key elements of music including rhythm, texture, dynamics, pitch, form, and timbre. Children will build their knowledge of basic music techniques through a set of fun activities based on each element, and they’ll grow their confidence and collaborative skills along the way. […]
What is the two properties of gravity?
What is the two properties of gravity? Property 1: The gravitational force is a long-range force, which exists between two particles, regardless of the medium that separates them. Property 2: The gravitational force is directly proportional to the product of the mass of the two bodies. This means a larger mass will yield a larger […]