Which group of vitamins can be toxic in large amounts because the excess is not excreted in urine and can accumulate in the liver?

Which element forms the basis of all organic organisms a carbon b oxygen c hydrogen d nitrogen

The response is the basis for vaccination. primary secondary tertiary none of the above

How are gross production and net production different? a. net production is always greater than gross production. b. net production is always less than gross production. only animals have net production. d. only plants have net production. select the best answer from the choices provided