The scientific method is limited to investigating physical phenomena that are which of the following? Select all that apply

Which of the following is most important in making the typical seed more resistant to adverse conditions than the typical spore? a) a different type of sporopollenin b) an internal reservoir of liquid water c) integument(s) d) ability to be dispersed e) waxy cuticle

15 ! come and answer! a(n) is the general term for an infectious disease that has spread across a city, region, or country.

Apopulation of black bears depends on salmon from a stream for food. if a drought causes the stream to run dry one year, how will this likely impact the black bear population?