Which organisms are prokaryotes? a. archaea
b. fungi
c. protists
d. plants

Which way do the nitrogenous bases in dna pair up? a. a and g; t and c b. a and c; t and g c. a and t; g and c d. a and a; t and t; g and g; c and c

The main ingredient of magma is a pahoehoe. b silca c dissolved gases d obsidian

Enzymes are both ph and temperature specific. seen here are the reaction rates of three common digestive enzymes. based on the data, which enzyme's optimum activity occurs in a basic environment while another's is very acidic?