Endoskeleton
A. Insects and crustaceans
B. Fish
C. Insects especially the pollinators
D. All vertebrates <span />
Because the only difference between the potted plants is the type of seed, Michelle is most likely testing- D. The growth rate of different types of bean seed.
D.) "Pepsin" <span>speeds up the breakdown of proteins in food
Hope this helps!</span>
