Is knee jerk somatic reflex? Somatic reflexes involve stimulation of skeletal muscles by the somatic division of the nervous system. The knee jerk reflex is called a monosynaptic reflex. What are the five components of any reflex? The reflex arc consists of 5 components: sensory receptor. sensory neuron. integration center. motor neuron. effector target. What […]
Are Narcissists hypersexual?
Are Narcissists hypersexual? Like histrionic and existential patterns, narcissistic hypersexuality feeds on sexual attention. Do narcissists worry about being narcissistic? If you worry that you are a narcissist… you’re probably not. That’s because, in my experience, people who actually have Narcissistic Personality Disorder or a narcissistic style rarely wonder or worry about their narcissism. Narcissists […]
Why solar car is not widely used?
Why solar car is not widely used? Even the best solar cells can only collect limited power and energy over the area of a car’s surface. This limits solar cars to ultralight composite bodies to save weight. Solar cars lack the safety and convenience features of conventional vehicles. Is it bad to live near a […]
What are examples of cross cutting relationships?
What are examples of cross cutting relationships? Microscopic cross-cutting relationships are those that require study by magnification or other close scrutiny. For example, penetration of a fossil shell by the drilling action of a boring organism is an example of such a relationship. What causes cross-cutting relationships? Sedimentologic cross-cutting relationships occur where currents have eroded […]
Why can you hear around corners?
Why can you hear around corners? Sound waves that we can hear have much longer wavelengths than do light waves. As a result, the diffraction of sound waves around a corner is noticeable and we can hear the sound in the “shadow region,” but the diffraction of light waves around a corner is not noticeable. […]
What was the most important finding from SN1987A?
What was the most important finding from SN1987A? After the progenitor star Sk-69 202 exploded, astronomers measured the time it took for the energy to travel from the star to the primary ring that is around the star. From this, we can determined the actual radius of the ring from the star. A line from […]
What is the meaning of wind current?
What is the meaning of wind current? a flow of air What is the monsoon wind? A monsoon is a seasonal change in the direction of the prevailing, or strongest, winds of a region. Monsoons cause wet and dry seasons throughout much of the tropics. Monsoons are most often associated with the Indian Ocean. Monsoons […]
When did the Copernican Revolution start?
When did the Copernican Revolution start? 1543 Who discovered revolution of Earth? Nicolaus Copernicus When did Darwinian revolution occur? 1859 Why Darwinian revolution is important? Charles Darwin is centrally important in the development of scientific and humanist ideas because he first made people aware of their place in the evolutionary process when the most powerful […]
What can trace fossils tell us?
What can trace fossils tell us? Trace fossils provide palaeontologists with evidence of the activities of ancient animals – something body fossils simply can’t do. Trace fossils are formed in place and can therefore tell us about the ancient environment in which the animal lived. Why is fossil evidence so rare? Fossils are rare because […]