which of the following statements is true about biomes?

a. geographic location is not one of the three main ways biomes are classified.

b. geographic location has nothing to do with classification of biomes.

c. geographic location is random; there can be many biomes in one region of the world.

d. geographic location is generally quite important as it affects the climate and what types of organisms live in a biome.

Which of the following is an advantage of using embryonic stem cells in medical research? a. the use of embryonic stem cells is much less expensive than the use of adult stem cells. o b. no living tissue is damaged when scientists use embryonic stem cells. o c. embryonic stem cells are able to differentiate into a wider range of cells than adult stem cells. d. there is no controversy surrounding the use of embryonic stem cells.