Gravity Holds Galaxies Together

question 114

Multiple Choice

Gravity holds galaxies together. What does the weak nuclear force hold together?

• A) leptons (particles including electrons and neutrinos)
• B) nothing
• C) nuclei
• D) quarks inside protons and neutrons

---

Definitions:

Joint Attention

Individuals focusing on the same object or event; requires the ability to track another’s behavior, one person directing another’s attention, and reciprocal interaction.

Memory Skills

The cognitive abilities that allow one to store, retain, and recall information and experiences.

Repetitive Behavior

Actions or sequences of actions that are performed repeatedly in a similar manner, often observed in various contexts including disorders like autism.

Scheme Theory

A cognitive framework or approach that emphasizes the structuring of information into schemas, which are mental representations organizing knowledge and guiding information processing.