Answer:
the correct answer is B it is changeable
Explanation:
Science knowledge may change due to the development of new technics for observing investigations also through new ways of thinking or framing the questions asked.
The Moon is an astronomical body that orbits planet Earth and is Earth's only permanent natural satellite. It is the fifth-largest natural satellite in the Solar System, and the largest among planetary satellites relative to the size of the planet that it orbits (its primary).
After staining endospores will be green in a parent cell.
Staining endospore is difficult as the bacteria do not allow stains to be
attach to the spore. This is why there is a need to use heat to let the main
stain which is Malachite green into the endospore.
The chloroplast take light from the sun and process it to sugar giving nutrients to the cell.