Where is the fluid that the lymphatic system collects returned to the blood?
a. heart
b. spleen
c. thymus
d. stomach

What gases are carried by the blood

Me 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.

Explain how negative feedback caused the changes in plasma glucagon concentration observed during the experiment.