<span>a substance required in relatively larger amounts by living organisms</span>
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<span>An ecosystem could probably survive without?
</span><span> soil.</span>
Answer:
A gene is a section of a double-stranded molecule known as DNA. This molecule is found within the nucleus of the cell, contained in threadlike structures called chromatin. The two strands form a double helix linked by a series of paired bases. The base adenine is always linked to thymine and the base cytosine is always linked to guanine.
Answer:
After 3 half-lives (1500 years), 125 g of the parent isotope will remain
Explanation:
Answer would be sarcoplasmic reticulum
