What diagnostic procedure is done to obtain cells for karyotyping of a fetus?

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

How does photosynthesis show the conservation of mass and energy?

If a grape were placed in a hypertonic solution what would happen and why?