Do we have enough evidence about objects in our Solar System?

Yes we do!

Explanation:

There is plenty of hot stuff in our solar system, even in the outer frozen realms; so much that planetary scientists have found evidence of volcanism on every terrestrial planet and on many of the moons and even some asteroids!

The Moon and Mercury have thick volcanic flows on their surfaces, erupted long ago from fissures in their crusts. While the Moon and Mercury have relatively small volcanoes, those on Venus, Earth and Mars are large and numerous. We know that Earth's volcanoes are still active and Venus' may be, but scientists debate whether Mars' volcanic activity has finished. Jupiter's moon Io holds the record for the most volcanically active body in the solar system

the generally accepted parts of modern cell theory include: all known living things are made up of one or more cells. all living cells arise from pre-existing cells by division. the cell is the fundamental unit of structure and function in all living organisms.