What is the smallest unit of an organism that can carry out all the functions of life

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

What is the importantence of the carbon and nitretan cycles in the environment

How does an angiosperm prevent self pollination