Is the splitting of a heavy nucleus into two nuclei of smaller mass? Fission is the splitting of a heavy, unstable nucleus into two lighter nuclei, and fusion is the process where two light...
Are there any environmental concerns with the use of helium? Helium is less water- soluble than any other gas. Helium is a natural, inert gas. Most helium is found in natural gas fields. We...
How does a neuron function? Neurons, also known as nerve cells, send and receive signals from your brain. While neurons have a lot in common with other types of cells, they’re structurally and functionally...
How does the sodium potassium pump help maintain the resting membrane potential? The sodium-potassium pump goes through cycles of shape changes to help maintain a negative membrane potential. In each cycle, three sodium ions...
What is the main idea of natural selection? Natural selection is the process through which populations of living organisms adapt and change. Individuals in a population are naturally variable, meaning that they are all...
Does Kuwait Export Natural Gas? Its official language is Arabic. Kuwait has a prosperous economy. Oil and gas sector accounts for about 40 per cent of its gross domestic product and about 92 per...
Which structure contains pairs of opposing skeletal muscles? Together, skeletal muscles and bones are called the musculoskeletal system (also known as the locomotor system). Generally speaking, skeletal muscle is grouped into opposing pairs such...
What muscles are attached to the radius? Proximal Biceps brachii attaches to the radial tuberosity. Supinator, flexor pollicis longus and the flexor digitorum superficialis attach to the upper third part of the shaft of...
What does the all or none principle refer to? All-or-none law, a physiological principle that relates response to stimulus in excitable tissues. It has been established, however, that the individual fibres of both skeletal...
Which muscle is used to close and pucker lips? Orbicularis oris muscle Which muscle depresses the lower lip and mandible? Depressor labii What muscle is called the kissing muscle? A ring of muscle encircling...