Question

doing certain activities before bed can disrupt sleep.
the older a person is, the more sleep he or she needs.
in comparing identical and fraternal twins, fraternal twins had more similar sleep patterns.
sleep is a luxury.
where is the suprachiasmatic nucleus (scn) located?

Explanation:

For the first part (true/false - like statements):

• "Doing certain activities before bed can disrupt sleep" is true (e.g., screen time, caffeine).
• "The older a person is, the more sleep..." is false (older people need less sleep).
• Twin sleep pattern statement is false (identical twins have more similar patterns).
• "Sleep is a luxury" is false (sleep is a biological necessity).

The suprachiasmatic nucleus (SCN) is located in the hypothalamus of the brain. It regulates the circadian rhythm.

Answer:

The true statement is: Doing certain activities before bed can disrupt sleep.

For "Where is the suprachiasmatic nucleus (SCN) located?":