Answer:
Rough endoplasmic reticulum differ from smooth endoplasmic reticulum by the presence and absence of ribosomes in their surface.
Explanation:
Rough endoplasmic is named so because RER contain ribosomes at their surface and due to the presence of ribosomes rough endoplasmic reticulum play an importnt role in protein synthesis or translation.
Whereas smooth endoplasmic reticulum does not contain any ribosome in its surface.smooth endoplasmic reticulum helps in the biosynthesis of lipid and steroids along with detoxification of toxic compounds.
All of them except d. But then again it depends on who you are and what you think about what a purpose is. You need all of the other choices to have something to think about what purpose really means.
Answer:
a bicyclist travels 60.0 kilometers in 3.5 hours what is the bicyclist average speed?
Average speed= 4.76m/s
Explanation:
Speed= distance/time
distance= 60km= 60 X 1000= 60,000m
time= 3.5 hours= 60 X 3.5= 210 minutes= 210 X 60= 12600 seconds
Therefore speed= 60000m/12600s
Speed= 4.76m/s