Which of the following is a way that crayfish and grasshoppers are different?
Select one:
a.
Crayfish have an exoskeleton, while grasshoppers do not.
b.
Crayfish have an open circulatory system, while grasshoppers have a closed circulatory system.
c.
Grasshoppers have compound eyes, while crayfish have a simple eye.
d.
Grasshoppers have spicules and tracheal tubes that serve as the means of gas exchange, while crayfish have gills.
e.
Grasshoppers have well-developed nervous systems, while crayfish have a ladder network of nerves.
