The oxygen needed for cellular respiration needs to be provided......acquired from breathing
Answer:
C) When common lands are protected, land degradation slowly disappears.
Explanation:
Answer:
Aristotle first wrote about the practice of animal testing in ancient
Greece during the third century BC.
Explanation:
The heart of a lazy person pumps blood less efficiently than an athlete who has trained and prepared to achieve a high performance, this can be understood with the example of football players who will play in other countries that have a higher altitude than the country of origin and has to go before to get used to the rarer air
