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Calcium in sentence

43 examples of Calcium in a sentence

When you evaporate seawater, the first thing to crystallize out is calcium carbonate.
This abalone shell is a biocomposite material that's 98 percent by mass calcium carbonate and two percent by mass protein.
It was during this time that there was increased calcium, iron and silicon in the environment, and organisms learned how to make hard materials.
They can pull calcium out of the environment, and put down a layer of calcium and then carbonate, calcium and carbonate.
Medullary tissue is the calcium build-up, the calcium storage basically, when an animal is pregnant, when a bird is pregnant.
So what we're doing at the moment is we're accumulating metals like calcium, potassium and magnesium from out of desalination brine.
Several of these nutrients are essential chemical elements: phosphorus, nitrogen and calcium.
And they said, calcium carbonate.
And I said, that's what this is; this is calcium carbonate.
In an article in the magazine Redbook titled "You: PMS Free," readers were informed that between 80 to 90 percent of women suffer from PMS. L.A. Muscle magazine warned its readers that 40 to 50 percent of women suffer from PMS, and that it plays a major role in women's mental and physical health, and a couple of years ago, even the Wall Street Journal ran an article on calcium as a treatment for PMS, asking its female readers, "Do you turn into a witch every month?"
Because what seems a simple stalactite here is not made by calcium carbonate, but is made by opal, and one of those stalactites can require tens of millions of years to be formed.
There are corals made of different forms of calcium carbonate growing off the basalt of this massive undersea mountain, and the dark sort of stuff, those are fossilized corals, and we're going to talk a little more about those as we travel back in time.
It's made of calcium carbonate, so you can see its tentacles there, moving in the ocean currents.
That degrades the armor over time, leaching away its calcium minerals.
Once in the nervous system, lead mimics and disrupts the normal functions of calcium, causing damages ranging from learning disabilities to high blood pressure.
Substances like copper, calcium chloride, and potassium chloride can add their own characteristic hues to the mix.
When water enters these tiny cracks, it hydrates the concrete’s calcium oxide.
The resulting calcium hydroxide reacts with carbon dioxide in the air, starting a process called autogenous healing, where microscopic calcium carbonate crystals form and gradually fill the gap.
Scientists have discovered that some bacteria and fungi can produce minerals, including the calcium carbonate found in autogenous healing.
When cracks finally appear and water trickles into the concrete, the spores germinate, grow, and consume the nutrient soup that surrounds them, modifying their local environment to create the perfect conditions for calcium carbonate to grow.
It's possible because the mycelium produces oxalic acids, and many other acids and enzymes, pockmarking rock and grabbing calcium and other minerals and forming calcium oxalates.
So, fungi and mycelium sequester carbon dioxide in the form of calcium oxalates.
You can see the calcium buildup on the head of the poporo gourd.
But if you break a gourd, you cannot simply throw it away, because every stroke of that stick that has built up that calcium, the measure of a man's life, has a thought behind it.
UV helps our bodies produce vitamin D, an ingredient that strengthens bones and lets us absorb vital minerals, like calcium, iron, magnesium, phosphate, and zinc.
This tissue is packed with nutrients and ions like calcium, potassium, and iron, which the tree has absorbed through its roots.
The flux of these charged particles is a crucial step for muscle contraction: the change in charge creates an electrical signal called an action potential that spreads through the muscle cell, stimulating the release of calcium that’s stored inside it.
This flood of calcium causes the muscle to contract by enabling proteins buried in the muscle fibers to lock together and ratchet towards each other, pulling the muscle tight.
But eventually, over the course of repeated contractions there may not be sufficient concentrations of potassium, sodium or calcium ions immediately available near the muscle cell membrane to reset the system properly.
Even when ions like sodium, potassium or calcium are depleted in or around the muscle cell, these ions are plentiful elsewhere in the body.