By a series of vibrations produced by an object. When an object produces sound, the sound waves travel and reach the ears. :)
sound travels through different mediums to reach our ears, depending on your position. Sound can travel through water in the form of vibrations, and it can travel through the atmosphere, that is, the air, to reach our ears. It travels faster in gas(air).
well when the medicine reaches ur stomach all the nutrients from the pill break up making it go to different parts of ur body
A pill is usually absorbed into the blood through the stomach walls after it is swallowed – these can become active in a few minutes but usually take an hour or two to reach the highest concentration in the blood. IV drugs are injected directly into the blood work much faster – sometimes in seconds or minutes.
What can natural selection accomplish? prove Darwin's idea of "survival of the fittest" change relative number of inhabitants within a community favor a particular variety (color or size) of a species change one kind of organism into another in order to surviv
A classic example of natural selection is the origin of giraffes long necks. The ancestors of modern giraffes were similar to deer with necks of ordinary length. Here natural selection accomplish Darwin's idea of "survival of the fittest". The correct option is A.
What is natural selection?
The mechanism through which living creature populations adapt and change is defined as the natural selection. The genes which are responsible for the survival of an organism are passed on to the successive generations.
Natural selection states that the organisms which are able to survive and reproduce with the changing environmental conditions are selected by the nature whereas the ones which cannot survive are eliminated.
So the survival of fittest means that the organisms which are suited to the environment will survive. Survival of the fittest is an expression developed from Darwin's theory of evolution.
Natural selection makes it so that an organism from a species has a better chance of surviving than an organism in the same species, but with different traits. Survival of the fittest proves that certain traits can help an organisms survive better than its peers. For example, say there was an allele that made bears have thicker fur than others. The year-round climate is extremely cold. The bears with thicker fur are more likely to survive due to the warmth their fur provides and will have more offspring. The bears with thinner fur will die more often and not produce healthy offspring due to the frigid temperature. Eventually, the allele for thin fur will die out because the bears with these alleles cannot survive in their habitat.