This seems easy.. You got this.
Organelles Are surrounded by one or two layers of unit membrane.
This includes: nucleus, mitochondria, lysosomes, peroxiosomes, endoplasmic reticulum (smooth and rough), Golgi complex, Phagosome
A vaccine can help keep people healthy and protect them from a certain virus. For example people in the United States get the flu shot when they get this shot the vaccine wont magically get rid of the virus but rather help them fight it off and protect them in the future if they keep up to date getting the vaccine
C.) Rocks in the Geosphere
Hope this helps :)
Answer:
d
Explanation:
The answer would be d because limitation of models is basically about non realistic part of models that separate them from real life which is what d is saying.