A reflex action often involves a very simple nervous pathway called a reflex arc. A reflex arc starts off with receptors being excited. They then... View Article
Sound is transmitted as sound waves from the environment. The sound waves are gathered by the outer ear and sent down the ear canal to the... View Article
Answer: The distance formula is the formula, which is used to find the distance between any two points, only if the coordinates are known to us.... View Article
Protozoa are small (but not simple) organisms. They are single-celled heterotrophic eukaryotes, which eat bacteria and other food sources.... View Article
Newton's three laws of motion may be stated as follows: Every object in a state of uniform motion will remain in that state of motion unless an... View Article
Answer: The standard form of a quadratic equation is ax2+bx+c=0, Where a,b and c are real numbers and a≠0. a is the coefficient of x2. It is... View Article
Let n be the number of sides: Sum of all interior angles of a polygon = (n - 2) 180o Four angles measure 100o each and remaining angles (i.e n... View Article
Biotic factors are the living components of an ecosystem and are sorted into three groups: producers or autotrophs, consumers or heterotrophs,... View Article
The conductance of a solution is a measure of the ability of that solution to carry a current. The transfer of electricity through the solution... View Article
Answer: A projectile is any object thrown into space upon which the only acting force is gravity. The primary force acting on a projectile is... View Article
The process in which allele frequencies within a population change by chance alone as a result of sampling error from generation to generation is... View Article
Distance in one hour = 1 km Distance in second hour = 0.5 km Distance in third hour = 0.3 km We know that, Average speed = total distance /total... View Article
The number of times a given factor appears in the factored form of the equation of a polynomial is called the multiplicity. The zero associated... View Article
Proteins are made up of amino acids that join together to form long chains. There are 20 amino acids that help form thousands of different... View Article
Answer: The cell membrane is also known as the plasma membrane. It is the outermost covering of animal cells. It is a semi-permeable membrane... View Article
Effective nuclear charge =2.60 and valence shell contain 3 electrons. Thus, the minimum number of main shells for the given element are two i.e.,... View Article
Collenchyma cells have thin primary walls with some areas of secondary thickening. Collenchyma provides extra mechanical and structural support,... View Article
