Which of the following organelles are common to both prokaryotic and eukaryotic cells? 1. plasma membrane, ribosomes, and cytoplasm 2.cytoplasm, nucleolus, and ribosomes 3.ribosomes, nucleoid, and golgi apparatus

Johnny rode his bike to a friend's house 4 blocks down the street in his neighborhood. he immediately rode back home once he realized his friend was not able to play. what was his displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point

Explain how the political influence of african americans leaders became weaker.

Which of the following determines the specificity of a dna probe? a. type of radiation b. level of enzymatic activity c. number of neutrons d. complementary base pairing