PLEASE HELP ASAP!!! NEED HELP ON EXAM !! will give brainliest !!
Which element is necessary to form a protein molecule but not a carbohydrate
molecule?
Question 3 options:


A. carbon


b. nitrogen


c. oxygen


d. hydrogen

How are prokaryotic and eukaryotic cells similar?
Question 7 options:


A. Both contain cell walls.


B. Both contain a nucleus


C. Both contain ribosomes


D. Both contain membrane-bound organelles.

Respuesta :

Answer:

1.Nitrogen is the answer because carbohydrates contain carbon,hydrogen and oxygen.

2.They both have a nucleus-----prokaryotic cells are cells whose nucleus is not membrane bound while eukaryotes are cells whose nucleus is membrane bound