The correct answer is option C which is globular. And the correct statement is:
Globular star cluster forms from tightly packed groups of older stars.
The type of star cluster that forms from tightly packed group of older stars is called “The Globular cluster.”
Globular cluster is known to contain large group of old stars that are tightly and closely packed accordingly in a symmetrical but spherical form.
Globular clusters are the largest and most enormous star clusters, and are known to usually appear in roughly spherical forms.
Globular clusters are usually formed through molecules of giant cloud, or enormous masses of gas that form stars due to their collapse. Notably, globular clusters cannot form today as a result of the current limited availability of free gas compared to its abundance at the early stage of the universe.
Globular clusters are found to be the oldest objects existing in the Galaxy. Globular clusters are said to contain between hundreds of thousands and millions of stars, and are heavily distinguished among other clusters due to their old age uniformity.
The relative ages of elements in globular clusters ranges from 11 billion to 13 billion years after being determined by comparing stellar population of globular clusters with stellar evolutionary models.
It should be noted that they could be as young as 9 billion years old based on modern developed research models.
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KEYWORDS:
B.monosaccharide
C.dissacharide
The milk sugar, lactose, is made up of glucose and galactose it is a dissacharide.
Thus, A disaccharide is the sugar that results from the glycosidic connection of two monosaccharides, often known as a double sugar or biose.
Disaccharides are simple sugars that are soluble in water, just like monosaccharides. Maltose, lactose, and sucrose are three typical examples.
One of the four chemical classifications of carbohydrates (the others being monosaccharides, disaccharides, oligosaccharides, and polysaccharides) is disaccharides. Disaccharides having 12 carbon atoms, such as sucrose, lactose, and maltose, have the general formula C12H22O11.
Thus, The milk sugar, lactose, is made up of glucose and galactose it is a dissacharide.
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B) E. Coli bacteria
C) human brain cell
Answer:
A.
onion cell
Explanation:
The answer is B. Every single amino acid has more than one codon.
There are 20 different amino acids, but there are more than 20 combinations of three nucleotide bases on DNA. There are 64 different combinations of three nucleotide bases on DNA, which is about 3 times more than the number of amino acids. Therefore, every single amino acid has more than one codon is the right answer. But, it should be taken into consideration, that 2 out of 20 different amino acids have only one codon - methionine and tryptophan.