Question

25.1 reading review
which component forms the basic structure of the universe?
○ comets
○ galaxies
○ planets
○ stars

Explanation:

Galaxies are large systems containing stars, planets, comets, dark matter, and interstellar gas/dust, and they are the fundamental building blocks that form the basic structure of the universe. Comets, planets, and stars are all components within galaxies, not the foundational structural units of the universe itself.

Answer:

B. galaxies