What's up these organisms has an exoskeleton?

Where would you expect to see seedless plants, such as ferns and mosses? a. in a botanical museum, because they are all extinct b. low and close to the ground in a moist environment c. climbing high while circling the branches of another plant d. deeply rooted in a forest with a trunk that reaches 20 meters or more

The cluster of developing cells from conception until birth is called an

Can result as a complication of diabetes due to damage to the arterial walls and excess fat in the blood.