Answer: atp and adp
Explanation: atp is an unstable molecules which hydrolyzes to adp and inorganic phosphate when it is in equilibrium with water.
Answer:The placement of fossils throughout the sruface layers of earth
Explanation:
True ..In animals, the female mitotic sequence produces only one ovum; the other three haploid cells become "polar bodies".
Answer:
gases of nitrogen and many more
Each layer of earth has a different density the more in you go with the layers the more density is going to show up.
Crust-2.2g/cm^3
Upper mantle-3.4g/cm^3
Lower mantle-4.4g/cm^3
Outer core-9.9g/cm^3
Inner core-12.8g/cm^3
Hope I helped in something, Sorry if I didn't gave it my best shot:)