What is the major function of the peripheral nervous system? The PNS has three basic functions: (1) conveying motor commands to all voluntary striated muscles in the body; (2) carrying sensory information about the external world and the body to the brain and spinal cord (except visual information: the optic nerves, which convey information from […]
Can muscles grow without protein?
Can muscles grow without protein? “A high proportion of your extra calories should come from foods containing protein, which will give you the necessary amino acids to build muscle mass. Without protein, you will just gain fat and little muscle”, he continues. But there is a limit. It’s not as simple as protein equals muscle. […]
Do other solar systems look like ours?
Do other solar systems look like ours? Scientists have captured the first direct image of a solar system that closely resembles our own. The new image is a family portrait of sorts, showing two giant exoplanets orbiting a young, sun-like star, roughly 300 light years away. What is the closest solar system to ours? Alpha […]
Why does convection current occur?
Why does convection current occur? Convection currents are the result of differential heating. Lighter (less dense), warm material rises while heavier (more dense) cool material sinks. It is this movement that creates circulation patterns known as convection currents in the atmosphere, in water, and in the mantle of Earth. How does convection occur? Convection occurs […]
Is human hierarchy natural?
Is human hierarchy natural? Human beings are intrinsically hierarchical. This is a natural consequence of the family/tribe in that adults have the responsibility to raise/teach children which is a hierarchical activity. Is there a female hierarchy? In a report published in the January issue of the Personality and Social Psychology Bulletin, Mast, a psychologist at […]
What does Q mL mean?
What does Q mL mean? heat energy Is Melting copper exothermic or endothermic? No, heat has to be added to make copper melt. So that’s called an endothermic process. When copper freezes it releases heat, so that’s called exothermic. Is cooking an egg exothermic? Cooking an egg is an endothermic process because added energy makes […]
What is the viscosity of glycerin?
What is the viscosity of glycerin? µ, kg / m · s. Glycerin: -20°C. 134.0. Does temperature affect viscosity? The gas viscosity will increase with temperature. According to the kinetic theory of gases, viscosity should be proportional to the square root of the absolute temperature, in practice, it increases more rapidly. The result is that […]
How do you explain weather and climate to a child?
How do you explain weather and climate to a child? Climate is the average weather usually taken over a 30-year time period for a particular region and time period. Climate is not the same as weather, but rather, it is the average pattern of weather for a particular region. Weather describes the short-term state of […]
What is a disadvantage of oil?
What is a disadvantage of oil? Burning oil produces carbon dioxide gas. Burning oil can pollute the air. Much of our oil has to be imported and it is becoming more and more expensive as reserves reduce and imports increase. Producing electricity from crude oil is expensive compared to other fossil fuels such as coal […]
Why does glucose dissolve in water?
Why does glucose dissolve in water? Glucose is small (6 carbons) and dissolves easily in water because it has a number of polar OH groups attached to its carbons. To these cells, glucose is fuel and raw material for making other biological molecules. What happens when glucose dissolves in water? The sugar we use to […]