Hiv, the virus that causes aids, is transferred through body fluids, people once thought that hiv infections were untreatable.
now, many people live relatively long and healthy lives despite being infected with hiv.
this is possible because science
a. develop new medicines
b. treat inherited diseases
c. change societal attitudes
d. formulate new laws

not sure if this is what you'r looking for nnew= nold

answercells,tissues,organs,organ,system-organism;

levels of biological organization; organism,population,community,ecosystem,biome,biosphere,

hope this .good luck

answer;

a. sheep consumption efficiency would be reduced.

explanation;

-trophic efficiency is a measure of how much energy occurs at one level divided by the energy at the level immediately below it . trophic efficiency incorporates three types of efficiency:

-the proportion of available energy that is consumed (consumption efficiency).   it is the proportion of the available biomass that is ingested by consumers.

-the proportion of ingested food that is assimilated (assimilation efficiency).

-the proportion of assimilated food that goes into new consumer biomass (production efficiency).

-in this case, the grasshoppers would affect sheep by reducing the proportion of the available biomass that is ingested by the sheep.