You want to study the oxygen binding ability of hemoglobin at ph 7.21 and ph 7.60. you decide to use a phosphate buffer.

a) how would you make up 500 ml of 50 mm phosphate buffer, ph 7.21, starting with 1.00 m h3po4 and either 10.0 m hcl or 10.0 m naoh?

b) how would you make up 500 ml of 50 mm phosphate buffer, ph 7.60, starting from your 50mm phosphate buffer at ph 7.21?

The images show two species of tree frogs in a particular region. the gray tree frogs are adapted to the trees of the woodlands, while the green tree frogs can survive in woodlands or grasslands. the gray frog was abundant in the woodlands. because of climatic changes, most of the trees in the region died, and the woodlands changed to grasslands. in such a case, the . the gray tree frog is closely related to the green tree frog genetically, but they have different mating calls. this suggests that speciation occurred because of .

What is true of metabolism in its entirety in all organisms?

What would happen if a plant could carry out photosynthesis, but not respiration? question 1 options: it would have no food. it would have too much water. it would be unable to capture the energy in sunlight. it could make food but not break it down for energy.