Question

Help please

#1 The term "endosymbiotic" means...
A. inside and helping each other
B. inside and attacking another
C. outside and attacking another
D. outside and helping each other

#2 The most difficult step for science to explain about how early life formed is...
A. how molecules could self replicate.
B. how selectively permeable membranes formed.
C. how organic molecules formed.
D. how nucleic acids like DNA began working with amino acids to make proteins.

Answer 1

#1 [A. inside and helping each other

#2 [D. how nucleic acids like DNA began working with amino acids to make proteins