Question

3. Muscles can also respire anaerobically,
4. During heavy exercise the breathing rate declines.​

Answer 1

Answer:

True

False is right answer

Answer 2

Answer:

yes , and our human body makes lactic acid and it's the reasons for knee cramps

Explanation:

and I learnt it today in online class

didn't expect that what I learnt might come in useful on the day it's learnt

what a coincidence