Answer: First it becomes a theory and a well established theory becomes a law. But the theory must be able to be proven.
Explanation:
Answer:
because the ovum is made to fertilize only a sperm at a time, once a sperm enters it closes. It then divides to form twins, triplets and so on
Answer:false
Explanation:
Phenotype refers to the actual physical and observable characteristics of a person .
Answer:
prophase cells, ( ^_^ ) /
Explanation:
" parent cell into two identical daughter cells. During prophase, the complex of DNA and proteins contained in the nucleus, known as chromatin, condenses. "