Please help me answer this. the questions are.

In part 1 of her exercise warmup, her heart rate _ because _ (include oxygen and homeostasis in your answer)

In part 3 of her exercise, endpoint/ cool down, her heart rate _ because _ (include oxygen and homeostasis in your answer)

Recent research by marine biologists suggests that bottlenose dolphins have names for themselves. scientists played sounds they had identified as the names of particular dolphins, putting them through a synthesizer so that they did not sound like the voices of particular dolphins. the researchers found that dolphins would respond to the names of other dolphins that they were related to or associated with, but they ignored the names of strangers. this discovery suggests a much greater degree of self-awareness in aquatic mammals than was previously suspected. if this research holds up, what does it suggest about dolphins?

Acceleration is a direct result of a.) balanced forces b.) unbalanced forces c.) gravity d.) velocity

Need with these questions . need the answers in a rush for these questions are the answers i put down are correct or not? ?