The phrase "amount of species" is not correct in standard written English.
It should be used in contexts discussing quantities, but "number of species" is the appropriate term.
Example: "The number of species in the rainforest is astonishing."
Alternatives: "variety of species" or "count of species."
n amount of species (mol).
The study of microfossils shows that the amount of species is moderately weak.
The researchers identified 10 such forks, and then compared the amount of species on the two branches.
The amount of species normalized by the total number of moles of C atoms in the reaction system is plotted as a function of temperature.
This method allows to qualitatively estimate the amount of species with respect to the number of Oxygen vs Carbon atoms, or Oxygen vs Double Bond Equivalent (DBE).
The amount of species Cl−, NO3−, SO42−, NH4+, Na+, K+, Mg2+, Ca2+, Mn, Fe, Cu, Zn, Pb and Hg removed from the runoff water is summarized in Table 5.
In general, enrichment of the inanimate environment with toys, structures, foraging devices, and/or videotapes increased the amount of species-typical behavior expressed by the monkeys, but did not affect their immune responses.
The percentage of species-specific CPs drops significantly to an average of 2% in other species, with human having the smallest amount of species-specific CPs.
The high amount of species-specific arrangements and genes might also be a consequence of frequent duplication events followed by lineage-specific retention (Paterson et al. 2010).
Next, we determined the amount of species-specific SNVs in each 100 kilobase syntenic window to identify regions that contain high and low nucleotide diversity in each species.
A visualized nested PCR product finally proved to be C trachomatis cryptic plasmid DNA by sequencing in the absence of a concomitant primary PCR band represented detection of a "low-positive" amount of species-specific DNA equivalent to that extracted from 1 to 2 × 106 elementary bodies in one sample collection.
