Jon likes hiking. he observes that whenever he hikes up a hill, he breathes heavier than when he is on flat ground. which two statements explain why this happens? sensors in the brain detect a lack of oxygen. the muscles in his body need more energy and therefore more oxygen. the body has too little carbon dioxide to maintain function. the body is using carbon dioxide instead of oxygen to make energy. blood pressure has decreased, so less blood is being pumped to the muscles.

this website is for anybody really not just for girls just saying, also while a lot of males are mean and you know there are the few who are kind and then there's the nice-guys but then theirs also guys like me who are shy we don't get out much because there are people like you who exist who would most likely punch a guy in the face so next time just think about things before you post them to a website where guys and girls can see your question.

small, big, or no change could occur in the phenotype. it could cause something as simple as a cats ears to curl backwards or something as frighting as death. it could also occur in the protien-coding area and have an effect on that but no effect on the amino acids. what has to occur is a changing in the hox gene or the control gene.

they both go up but then go back down. they both end lower than they started. lastly, they both are competitive/the second on.

explanation:

the cost of mining is extremely low compared to the money earned from mining, creating income to improve the environment.