Embolic strokes that are also known as ischemic stroke are cause by the blockage of an artery to the brain which is usually a blood clot that has been formed may it be in the heart. This then can cause a stroke.
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The correct answer is d.) they have a negative charge
Hydroxide ions, chemical formula OH⁻ are negatively charged anions.
Oxygen is covalently attached with hydrogen in hydroxide ion.
It is important as it can function as base, nucleophile, ligand as well as catalyst.
Chemicals containing hydroxide ions are considered as base. They dissociate in hydroxide ion and their respective cations in aqueous solution.
The Lewis dot structure of hydroxide ion is shown below.
<span>An organism may not be able to survive on just fermentation because the fermentation process does not produce very much energy. If an organism were to be able to survive on fermentation alone, the organism would have to be extremely small.</span>
Answer:
DNA structure DNA is made up of molecules called nucleotides. Each nucleotide contains a phosphate group, a sugar group and a nitrogen base. The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C).
Explanation: