C.
A is incorrect because if they have the disease then they cannot be healthy.
B is incorrect because if the genetic disease is recessive then the cannot have the homozygous mutated gene because then it would mean that they are ill.
D is incorrect because having an offspring that is ill doesn't always guarantee that all the offspring will be ill. <span />
Youwould have to know if the genotype was heterozygous or homozygous dominant
Gravity causes all types of mass movement. Mud-flows, landslides, creeps, and <span>slumps can all be causes by gravity.</span>
Water would enter and exit the cell at the same rate so the answer to this question is letter B
