A tube that contains xylem and phloem​

i might be wrong but i think its a. let me know if i’m right and have a good rest of your day!

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

the growth of the plants is affected by the heat of the light. what is the student doing?

i think it is d. objects resist changes in their state of motion.