Answer: vitamin C and calcium
Explanation:
The answer is; Physical weathering does not change the composition of the rock while chemical weathering does.
Physical weathering only cracks and breaks the rocks into smaller pieces. Chemical weathering causes a reaction between the rock minerals and acidic rain or organic acids from plants forming different minerals or dissolving the rock minerals.
The oxygenated blood then leaves the lungs through pulmonary veins, which return it to the left heart, completing the pulmonary cycle. This blood then enters the left atrium, which pumps it through the mitral valve into the left ventricle. From the left ventricle, the blood passes through the aortic valve to the aorta.
Answer:
The "X" or "Y" gene that determines whether you will be a boy or a girl is an example of a chromosome .
Explanation:
Down syndrome, turner syndrome, Klinefelter syndrome, and fragile X syndrome.
