Which cells contain a nucleus and membrane-bound organelles?
a. prokaryotic
b. eukaryotic
c. archaean
d. cyanobacteria

Eukaryotic cells contain a nucleus and membrane-bound organelles.  

Option B

Explanation:  

Eukaryotic cells consists of membrane bound organelle, when we talk about organelle it is a structure within a living cell which is specialized. The organelles consist of nucleus, ''endoplasmic reticulum'', ''Golgi apparatus'', ''vacuoles'', ''lysosomes'', ''Mitochondria''. These organelles is surrounded by a phospholipid bilayer. With this foundation, the organelles have cell to control what enters and leaves it. These cells are controlled by selective permeability which has the enter and exit in control of any object.

answer; i believe the correct answer is (sporophyte);

the index of refraction of the second medium is higher. i just took the test trust me !