Answer:
Dolphins can be awake and asleep at the same time because:
1. one side of the brain can sleep while the other side maintains swimming and breathing behaviors.
Explanation:
As incredible as it may sound, dolphins are indeed able to sleep with only half of their brain. The other half remains awake, but less alert then when they are awake. One of their eyes remains open, and their breathing and swimming behaviors are maintained. This is particularly helpful when predators are around or when obstacles are in their way. It also keeps them from drowning.
The 2nd one: What social skills are built by playing sports.
The North believed that preserving the Union was of utmost importance. The South favored states' rights. Thank you for posting your question here at brainly.
I hope the answer will help you. Feel free to ask more questions.
