Sentence examples for animal shells from inspiring English sources

In many cases, the grains are microscopic fragments of fossil animal shells.

The one sure way of keeping carbon on the seabed is in the form of calcium carbonate, the main ingredient of most animal shells.

The shale is made of alternating fine-grained layers of siliceous mudstone (compressed, hardened mud originally made of ground-up silicate rock) and calcisiltite originally animal shells ).

Many major classes of organic molecules in living organisms, such as proteins, nucleic acids, carbohydrates, and fats, contain oxygen, as do the major inorganic compounds that are constituents of animal shells, teeth, and bone.

Most structural proteins are fibrous proteins; for example, collagen and elastin are critical components of connective tissue such as cartilage, and keratin is found in hard or filamentous structures such as hair, nails, feathers, hooves, and some animal shells.

The plant distribution is influenced by the dunes' age as well as their moisture content, the deposits becoming less alkaline as calcium carbonate from animal shells is leached out of the sand to be replaced by more acidic humus from plant decomposition products.

The multistate structures inspired by animal shell have proven effective to improve the impact resistance of composite laminate.

The fossils are coated in pyrite, or fool's gold; this has preserved the outline not just of the animals' shells but of their softest and most delicate parts.

He was reacting against philosophers such as Athanasius Kircher, who "claim the great architect, as if in jest, had imitated the teeth and bones of animals, shells or snakes".

Researchers then took several measurements of the animals' shells and looked for correlations.

Embrandiri et al. (2015) reported a number of on-going experiments utilising these by-products in various industries such as bio-fuels, lumber for wood, feed for animals, shells as activated carbon for water purification etc.