Answer:
X
Explanation:
The mother passed on the gene, the father passed on the X chromosome and their son now has it.
<span>Self-replicating RNA in the early Earth's oceans served as the basis for the DNA in cells today</span>
Usually in sedimentary rocks such as limestone and shale.
B. The electron transport chain. The electron transport chain produces around 34 ATP molecules and the other 2 only produce around 2 ATP molecules.
Hydrosphere causes erosion of geosphere through running water and precipitation. Biosphere breaks down rock of the geosphere (plant roots), but when it comes to soil, minerals of the geosphere feed the plants. Biosphere and atmosphere interact through animal and plant respiration of oxygen and carbon dioxide.
