Examlex
How many stars of sixth-magnitude would it take for a small cluster to appear as bright as a single first-magnitude star?
Bloodstream
The circulating fluid in the body that delivers nutrients and oxygen to cells while removing waste products.
Enzymes
Biological molecules that significantly speed up the rate of virtually all of the chemical reactions that take place within cells.
Business Suits
Formal attire typically worn in professional settings, consisting of a jacket and trousers or a skirt made from matching fabric.
Eleventh Century
The period extending from the year 1001 to 1100 in the Common Era, characterized by various historical and cultural developments worldwide.
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Q197: Eta Carina is a<br>A) supernova remnant.<br>B) active
Q237: The heliosphere is a bubble in space