Rough ER is dotted with ribosomes which give it a "rough" appearance. Smooth ER doesn't contain ribosomes. :) Hope this helps!
dont copy me
An autosomal trait is a characteristic arising from genes located on chromosomes that are not gender determining.
For letter a, it is not advised to cut towards yourself. Although you might not harm the people surrounding you, you can't afford to risk yourself. For letter b, do not apply so much force. Just apply the minimal force, just strong enough to cut through. For letter c, you have to wear the goggles all the time for safety purposes. For letter d, I think this is the answer. When you only want to cut the skin, it would be better to use scissors.
Answer:
Adult sponges are sessile. This means they are unable to move from place to place.
