Answer:
Ellipsoids and spheroids and spheres.
Step-by-step explanation:
The solid figure without any bases and only one curved surface are Ellipsoids and spheroids and spheres.
A sphere is defined as a round and baseless solid figure where its each point on its surface is at equal distance from the center. This shape has a single curved surface throughout.
An ellipsoid is derived from a sphere. It is also a 3-D figure which is symmetrical to its three perpendicular axes. It also does not have a base and has a single curved surface.