It is known as a concentration gradient which in diffusion will always flow from ares of high concentration to areas of low concentrations
So i believe the answer to this is A.
The geologic indication recommends that eustatic global sea level upsurges have remained affected by rapid seafloor scattering at divergent plate limitations. Eustatic alterations in sea level might consist of increased glacial melting due to the global warming. The Gulf coast of the united states is an instance of a coast where tectonic subsiding happens.
A chromatid has something to do with chromosome
If not parents had a recessive type O allele, they would have a 1/4 or 25% chance of having a child with type O blood
