There are two components to the definition of diarrhea: Frequency â It is normal for an infant to have stools up to 10 times a day, although most donât attain this goal. The frequency will slow down as baby gets older, but even some toddlers and preschoolers still go several times a day.
plants quality concentrations growth. Indicator species are plants and animals that, by their presence, abundance, lack of abundance, or chemical composition, demonstrate some distinctive aspect of the character or quality of an environment.
Non-native species are species that have been introduced into new areas that have not historically been part of their native range. 'Exotic,' 'alien,' 'nonindigenous,' and 'introduced' are all synonymous terms referring to non-native species.In contrast, native species are species that have historically occurred as part of an ecosystem in a specific location. Native species are also called indigenous species.Introduction is defined by Krueger and May (1991) as the transfer by humans of an organism outside its native range.n contrast, native species are species that have historically occurred as part of an ecosystem in a specific location. Native species are also called indigenous species. Introduction is defined by Krueger and May (1991) as the transfer by humans of an organism outside its native range.