Genes and the environment
Cytoplasm. This photo should help explain it!
<span>Unconformities occur when younger rock is placed on top of older rock
hope this helps
</span>
Answer: her grandpa could not have been the source of either of her XX chromosomes.
Explanation: A male is the sole provider of the Y chromosome whereas females only have two XX's and no Y's
Answer:
No atoms are created or destroyed in chemical reactions.
Explanation:
Matter cannot be created or destroyed. When two reactants contact each other, a chemical reaction occurs which breaks the bonds between atoms and rearranges them, forming new bonds which transform them into the product. The same amount of atoms exists before and after the reaction.
