Exercising 4 Use the graphs on this page to answer these questions,
a What was the runner's oxygen uptake when he was resting?
b How much higher was his oxygen uptake after he had exercised for 100 seconds?
c How many breaths did he take in 15 seconds when he was resting?
d What is that in breaths per minute (60 seconds)?
e How much air went into his lungs each time he breathed when resting?
* Write two ways his breathing changed when he started running.

Select all the correct answers. lactobacillus is a bacteria that live inside humans. these bacteria live on the nutrients from our bodies. they to keep our gut clean and healthy. s. typhi is a bacteria that enter our bodies through contaminated food. this bacteria causes infections in the body. based on this information, which two statements about the association between these bacteria and humans are true? a. lactobacillus shares a parasitic relationship with humans. b. s .typhi shares a parasitic relationship with humans. c. both lactobacillus and s. typhi share a parasitic relationship with humans. d. both lactobacillus and s. typhi share a mutualistic relationship with humans. e. lactobacillus shares a mutualistic relationship with humans, and s. typhi shares a parasitic relationship multiply chrse

Why is excretion necessary to maintain homeostasis?

What processes would you expect to be key in the production of yogurt ?