asked 1.1k views
3 votes
The ______ acts as the internal clock that controls sleep and waking cycle

2 Answers

6 votes

b. pineal gland

Step-by-step explanation:

just took it on edge

answered
User Ravi Sevta
by
9.2k points
2 votes
The Pineal Gland acts as the internal clock that controls sleep and waking cycle.
answered
User ArtDijk
by
7.9k points
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