Answer:
it would be C, D, E
A is a mixture
B is a mixture
C is a pure substance because Oxygen gas by the chemical symbol O2, is strictly pure
D is pure substance because Gold is one of the basic elements found naturally in nature, and as such, in its pure form
E is a pure substance because Both ice and liquid water are the same substance. H2O Though ice water is a mixture of both solid and liquid it is a pure substance, based on the molecular structure of its components .
F is a mixture
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Answer: A scientific question can be answered through an investigation. What is tested? Scientists call this an independent variable.
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CHromosom is mado chromatids. Chromatids have a lot of thriplets inside. Every thriplet is one gene. Allele is also different variant of gene
S PHASE
<span>Cell division involves the different phases such as G1, G2, M and S phase. Cell division is the mechanism of cells to divide into other cells. Two types of cell division is popularly called the mitosis and meiosis. There basic difference is how they function and how many chromosomes their daughter cells have. </span>
A calorie is a unit of.
Energy.
The Calorie used on food labels is equal to.
1000 calories<span>.</span>
