#Question id: 27350
#XL - T Zoology
#Question id: 20188
#XL - P Chemistry
#Question id: 56
#XL - Q Biochemistry
Trace elements are those required by an organism in only minute quantities. Which of the following is a trace element that is required by humans and other vertebrates, but not by other organisms such as bacteria or plants?
#Question id: 10583
#XL - T Zoology
Suppose you discovered a new species about which youknow only two facts: it is small sized (<10 cm) and short lived (<20 days). Which of the following strategies is most likely to be true for this species?
#Question id: 11077
#XL - T Zoology
A person’s normal tidal volume is 400 ml with a dead space of 100 ml. The respiratory rate is 12 breaths/min. The person is placed on ventilator for surgery and the tidal volume is 700 with a rate of 12. What is the approximate alveolar Pco2 for this person?