After running home from school, a girl wants to know how the carbon dioxide she is exhaling is produced. which explanation best answers
a. it is waste released from the heart.
b. it is an energy source from the lungs.
c. it is waste produced by the cells in her body.
d. it is an energy source produced by the cells in her body.
her question?

Babies with very low or very high birth weight are less likely to survive. observe a graph of the data. % babies born at different weights % babies born in that category 6.0 6.5 in 50-555 70-75 80-8511 100-1055 which statement is a valid claim that could be made using the data in the graph? directional selection is occurring because the graph favors an extreme. mark this and retum save and exit next submit o type here to search