A force is described by its and .

A force is described by its magnitude and by the direction in which it acts.

Explanation:

Unbalanced forces acting on an object result in an force and cause a change in the objects velocity. Balanced forces acting on an object do not change the object's velocity. I hope this helps!

ecological efficiency: % of usable energy transferred as

biomass from one trophic level to the next typical is 10% efficient (90% of

energy is lost),is diagramed as the pyramid of energy flow. then osprey eagle

are tertiary consumer and the shrimp are primary consumer, so to balance

mass of shrimp (1/0.1) / 0.1 = 100 kg