What kingdom, phylum, and class does spirogyra belong to?

Tlymphocytes mature in the? a. thyroid gland. b. bone marrow. c. spleen. d. thymus.

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 %.

Which type of respiration takes place when there is no oxygen present? a. anaerobic b. mitochondrial c. cellular d. aerobica. anaerobic