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PootersWhen sampling a population, the numbers of organisms are counted within a sample site, and then the results multiplied to estimate the total number in the entire habitat. Large animals and plants can often simply be counted. However, many smaller animals like insects and smaller mammals need to be trapped first so they can be counted and then released afterwards. Collecting organisms Organisms can be collected using a variety of methods, including:

absorbent cotton tips

The coat protects their street clothes and also serves as a simple uniform

Formula: NaBr

glass manufacturing

The wheel and axle is a machine consisting of a wheel attached to a smaller axle so that these two parts rotate together in which a force is transferred from one to the other

a top-grade chemical compound for industrial and manufacturing use

is a shallow cylindrical glass or plastic lidded dish that biologists use to culture cells – such as bacteria – or small mosses

Lenses and other optical surfaces made from glass

and it is widely used as a pigment

It is a widely used food preservative

Sodium fluoride is an inorganic compound with the formula NaF

Tartaric acid is a white

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