Which scientific design has both practical limitations and limitations due to scale? A.) studying the effect of bleach on the growth of mold spores
B.) exposing cultures of duckweed to different intensities of light
C.) observing the replication of DNA molecules with a hand lens
D.) using colored marbles to model a cross between two colors of rabbits

c. observing the replication of DNA molecules with a hand lens

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Explanation:

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

c. the initial amount of money placed in the savings account