Which of the statements is true? a.)Ammonia is safe to cells at high concentrations.
b.)Uric acid can be stored at a higher concentration in tissues than urea.
c.)Excretion of urea requires less water than excretion of uric acid.
d.)Urea is produced and eliminated in the kidneys.
e.)Excretion of ammonia requires high volumes of water.

Which ideas did your answer contain? check all that apply. no food for organisms no oxygen in the atmosphere no trees or flowering plants no products based on trees or plants (building materials, medicines, fuels, fibers) no fossil fuels

The graph below compares the rates of reaction of a burning candle and an exploding firework. comparing chemical reactions what can you conclude from the graph? the reaction that causes a firework to explode requires less energy to start, and occurs more rapidly than the reaction that causes a candle to burn. the reaction that causes a firework to explode requires less energy to start, and occurs less rapidly than the reaction that causes a candle to burn. the reaction that causes a firework to explode requires more energy to start, and occurs less rapidly than the reaction that causes a candle to burn. the reaction that causes a firework to explode requires more energy to start, and occurs more rapidly than the reaction that causes a candle to burn. mark this and return

Explain how the political influence of african americans leaders became weaker.