If both the oysters and barnacles will grow on a single rock and compete for space, then the relationship between them would be harmful as none of them would benefit the other but would only try to outcompete the other due to the limited availability of space.
<em>Hence, the relationship that the two would share would be harmful to both the organisms. </em>
Definition - the state or quality of something being humid. Two things that increase humidity are 1) more water vapor in the air (more moisture) 2) lower temperature
Asexual reproduction how view Available Hints Asexual reproduction when is limited to planets leads to a loss of genetic material produces offspring genetically.