Vascular plants, like fern, show alternation of generations. which represents a gametophyte in the life cycle of fern? a. rhizomes b. prothallus c. sporangia

Which two factors contributed to creating a global culture? the creation of the united nations improvement in telecommunications health issues such as the ebola virus increased opportunities for global travel

In which way are mercury and venus similar? they both rotate from east to west. they are both small and rocky. they both have thick atmospheres. they both are similar to earth in structure.

What substance acts to prevent sudden ph changes in bodily fluids?