In order for sharks to maintain a concentration balance with it’s environment, a shark must: A. excrete large amounts of urine B. retain its urine in it’s blood stream
C. retain salt from it’s gills D. transport salt to it’s surroundings

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

Which of the following is not a food produced in rainforests? a) coffee b) cocoa c) avocados d) wheat

Kinases add - groups to other enzymes. this activities some enzyme while inhibiting other