Non specific defense is a type of immune response ( also called innate immune response) that does not target any specific disease causing organism ( pathogen such as any specific bacteria or virus).
It is mainly provided by the surface of body ( such as skin that acts as an important barrier against external agents).
Sweat is an example of non specific chemical defense as it makes the surface of skin ( epithelium) acidic, thereby inhibiting the growth of pathogens ( such as bacteria) on it.
When a scientist say's organisms have the same universal genetic code it mainly means that the "organisms use the same four nucleotide bases." Now <span>organic molecules that serve as the monomer units for forming the nucleic acid polymers.
Like repels like when we're working with electrical charges. So positive repels positive and negative repels negative. When you have questions that ask which of the following or which of these or something like that, it's best to give us those options so we can give you the best help possible.
The amount of energy at each trophic level decreases as it moves through an ecosystem. As little as 10 percent of the energy at any trophic level is transferred to the next level; the rest is lost largely through metabolic processes as heat.
