Ventricular contraction normally begins at the apex (bottom of the heart). what would likely happen if ventricular contraction originated at the intersection of the atria and the ventricles instead?

Give the biological term for: structures that display characteristics of living organisms only within living cells

Select the true statements about eubacteria. most live as decomposers and heterotrophs. most only thrive in a narrow range of environments. certain eubacteria are responsible for food poisoning. eubacteria thrive in extreme environments.

The fruit of a certain plant is sweet and fleshy. the seeds of this plant have a seed coat that is fairly tough. the seeds germinate better if they are exposed to acid, or scarification. what is the most likely type of dispersal for this seed? water animal wind