Answer: A substance is matter which has a specific composition and specific properties. Every pure element is a substance. Every pure compound is a substance. Examples of substances: Iron is an element and hence is also a substance.
D. Mitosis, During<span> the mitotic phase, the duplicated chromosomes are segregated ... reserves to </span>complete<span> the </span>task<span> of replicating each chromosome in the nucleus</span>
