The period during smooth muscle contraction of sustained tension is referred to as the

I could be wrong but I believe the answer is fused tetanus.

Explanation:

Searched it up, but it could be incorrect.

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 

b. to discover aspects of the natural world.

hopefully i .