The type blood vessels where gases are exchanged in the lungs
it can only be 9 letters

The population of bacteria in a petri dish doubles every 40 seconds. the population of the bacteria is initially 400 organisms. what unit is most appropriate for the time at which the number of bacteria is 300? hour bacteria per hour second bacteria per second

The united states produces an average of 429 billion pounds of food annually. about 133 billion pounds of that food ends up as waste.the percentage of food that the united states wastes each year is %.

Aflame cell is at the end of each tubule of the nephridium malpighian tubules kidneys none of the above