The three parts of DNA nucleotides are: A. Nitrogenous bases, phosphate group, and deoxyribose
B. Nitrogenous bases, pphosphate group and thymine
C. Five carbon sugar, Nitrogenous bases, and deoxyribose
D. phosphate group, Ribose, And. Nitrogenous bases

your body is trying to warm itself up. or more precisely, sensors in your skin send messages to your brain to generate heat to your body.

step 1: nitrogen fixation- conversion of atmospheric no₂ into forms useful to plants by lightning, bacteria, and cyanobacteria.

step 2: nitrification-process of converting ammonia to nitrite or nitrate.

step 3: assimilation-plant roots absorb new form of nitrogen.

step 4: ammonification-conversion of organic nitrogen to ammonia by bacteria involved in decomposition.

step 5: denitrification-bacteria turns the decomposed matter back into n₂o, which is released into atmosphere; repeat cycle.

enzyme active site and substrate specificity

enzymes bind with chemical reactants called substrates. there may be one or more substrates for each type of enzyme, depending on the particular chemical reaction. in some reactions, a single-reactant substrate is broken down into multiple products