6. As the blood travels through the lungs, it fills up with . carbon dioxide
oxygen
white blood cells
lungs
nutrients
physical activity​

During the first month of development, how many layers of cells make up the embryo? a. 1 b. 2 c. 3 d. 4

This is a negative reaction to food that doesn’t involve the immune system

Which is one purpose of creating federal laws and policies for tobacco use? to people stop using tobacco products to implement health events aimed at fighting tobacco use to monitor the trends in tobacco use across demographics to reduce the amount of money spent on tobacco products