Ireally need with this one!

refer to the illustration of an experiment performed to understand phototropism. the diagrams illustrate the cut tip of a seedling, which was placed onto a block of agar. in the diagram, the plant growth hormones that diffused into the agar block from the tip of the seedling are

a

explanation:

ionic bonds are two oppositely charged ions that attract. a sodium ion has a 1 positive charge; a chloride ion has a 1 negative charge. sodium and chloride have oppostive charged ions that attract which forms an ionic bond. a chemical bond formed when two atoms share electrons is called

answer; motor (efferent)neurons;