Answer:
B. Organic Matter
Organic matter is what differentiate a mineral from a rock.
Answer:
46
Explanation:
In a human egg or sperm, there are 23 chromosomes, one of which is an X or Y. A human egg is haploid (has 23 chromosomes) and a sperm is haploid (has 23 chromosomes). Upon fertilization, the new baby now has the 'correct' human number of 46 chromosomes in each of its somatic cells.
The earth has to be really really old but you. An search that up
There is something called the lock and key mechanism; it has a shape that fits the substrate like a lock fits a key only substrates with a particular molecular shape
