What is the function of phytochromes? A. chemicals used to sense darkness
B. accessory pigments that help in photosynthesis
C. pigments that absorb light energy from the sun and to help change it into chemical energy
D. hormones produced in the stem tip that promotes cell elongation

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

airlines i think? or a cruise boat? does this work out for u? ?

i wish i could with all of them i can barley see the first one so here's the answer to the first one b