Oxyhemoglobin releases its oxygen to the body tissues when there is a[n]: A)constant amount of nitrogen in the plasma.

B) increase in oxygen in the plasma.

C) decrease in carbon dioxide in the plasma.

D) increase in hydrogen ions.

What makes the results of a scientific experiment accurate? a) having multiple trials b) lacking any supporting data c) working in a lab d) using a hypothesis that is always true

How would you describe the the organisms in the second row of model 1 that are connected to the parents by a line

The greenhouse effect a. something that has occurred for millions of years b. an unnatural phenomenon caused by humans that maintains earths temperature range. c. the results of the differences in the angle of the suns rays d. an unnatural phenomenon that causes heat energy to be radiated back into the atmosphere