Strokes are often caused by
neurodegeneration
blood clots or burst blood vessels
seizures
viruses

The correct answer is B. Blood clots or burst blood vessels

Explanation:

Strokes are a medical condition in which the brain suffers a lesion and cells in it die usually because blood flood to the brain is not appropriate or has been interrupted and that causes the brain not to function normally. Because of this, individuals that experience strokes show symptoms that include loss of vision, problems or inability to move/ speak, among others. In terms of causes, it is believed strokes are related to issues in the cardiovascular system including high pressure, clots formation or burst of blood vessels but they are also influenced by other conditions such as diabetes or obesity. Considering this, the one that describes the cause of strokes is blood clots or burst blood vessels.

hey, i believe your answer would be d. sugar ribose and the base uracil. i believe this is the answer, because rna consists of sugar ribose, adenine, guanine, cytosine, and uracil.

your first option is incorrect, because that's dna. where it consists of sugar deoxyribose, adenine, guanine, cytosine and thymine.

your second option is also incorrect, this is because sugar deoxyribose is in dna, and uracil is in rna. these two do not make sense together.

your third option being incorrect, because sugar ribose is in rna, but not the base of thymine. rna consists of uracil, not thymine.

lastly your fourth option being correct! this answer is correct, because both sugar ribose, and the base uracil are in rna! ~

answer is d. sugar ribose and the base uracil.