Answer:
D
Explanation:
Trace evidence (traced back to the crime)
Elements In the same group or family in the periodic table have the same number of valence electrons.
For example the halogens all have 7 valence electrons in their outermost electron shell.
<span>Mitosis is a part of the cell cycle in which chromosomes in a cell nucleus are separated into two identical sets of chromosomes, and each set ends up in its own nucleus.
It is important that the cells have a copy of every chromosome, so the process involves copying the chromosomes first and then carefully separating the copies to give each new cell a full set.
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The muscular system produces body heat through contraction
chemicals and minerals dissolved in water
