Imagine three new organisms that are in the same genus

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

Vessels draining the myocardium of the heart, open primarily ,into which chamber?

Why is taking care of yourself a time management techique