Answer - B. Kidney function is controlled by the blood's composition and hormones.
Reasoning - Well to start off the kidneys (main) purpose function is to clean your blood which is very Important with blood composition. Second It can also and will excrete it through urine which is pretty much what it does. Oh and also a little bit of hormones.
Plant cells are eukaryotic cells that have a definite nucleus with specialized structures known as organelles that perform different functions within the cell. Some organelles of the plant cells with their function include; nucleus (controls the cells activities and contains genetic materials), cell wall (support the cell and also maintains high turgidity), ribosomes (synthesizes protein), mitochondria (produces ATP (energy) out of food), Golgi Apparatus (process and package proteins), chloroplasts (produces food by photosynthesis using sunlight), vacuole (stores water or food molecules) and lysosome (contains digestive enzymes that break down food).
Answer:
all of the above is correct.
D they are easily contained charges so on and off is no problemo