Sentences with phrase «called diatoms»

When hard - shelled algae called diatoms fossilize, they create a sedimentary rock that is easy to crumble called diatomaceous earth.

If there is plenty of silicate, marine organisms called diatoms will grow more happily.

Diatomaceous earth is an all - natural powder made from the fossilized remains of tiny, hard - shelled algae called diatoms.

Diamotaceous Earth is a fine white powder, made from crushed shells of microscopic aquatic creatures called Diatoms.

A Yale team has looked to nature to help solve a design problem, using tiny fossilized creatures called diatoms to improve the light absorption of organic solar cells.

The researchers learned that although the water appeared teeming with a particular type of phytoplankton, called diatoms, the diatoms were malnourished.

Red tides are produced by algae called diatoms.

For the ocean's tiny grazing animals, the microscopic algae called diatoms are a favorite food — and like most delicacies, they are turning out to be hazardous.

Cores taken from under the open ocean are often stained green from microscopic plants called diatoms that settle to the seafloor after dying, but this core contained none.

At that time, there were lots of nutrients in the ocean water there, because small organisms called diatoms, which have silica shells, were able to thrive.

That rain erodes rock and washes nutrients into the ocean, feeding blooms of phytoplankton called diatoms.

The smoking — or in this case, oozing — gun is a layer of siliceous microfossils called diatoms.

A glassy object snapped into focus — a round disk, serrated on the edge, perforated with dimples — the shell of an aquatic microscopic organism called a diatom.

Not exact matches

Back in the laboratory, the group isolated three compounds called aldehydes produced by the diatoms.

A new study shows that at least two diatom species make compounds that reduce hatching rates when eaten by tiny shrimplike animals called copepods.

Out of the vast diversity of plankton in the oceans, the worst offenders are a few species of diatoms, dinoflagellates and cyanobacteria, collectively called harmful algae.

Many diatoms like Biddulphia laevis, Actinocyclus, and Skeletonema punctatum are called centric diatoms, meaning they are symmetrical around a single point.

DE is composed of finely ground Diatoms which are one celled microscopic algae whose walls consist of two parts and contain a mineral called silica.

If there is very little silicate available, organisms called coccolithophores grow more readily than diatoms.