What do the digestive, respiratory, circulatory, and excretory systems have in common?

Both get rid of waste material. Explanation:

d. making up measurements to record.

sand 60

clay 10

silt 30

sandy loam should be dominated by the sand. as the amount of sand increased, the amount of slit needed to anchor the plants' roots to the sand will also be increased. even though the amount is very little, 10% part of clay is still necessary for proper oxidation.