Antibiotics and hormone additives for animals:

always have harmful affects on animals
affect animals only
accumulate in animal tissue
do not accumulate in animal tissue

accumulate in animal tissue

Explanation:

Antibiotics are given to animals to treat or avoid infectious diseases and also improve efficiency.  

Growth hormones are also given to this animals to increase productivity.

But overtime when this antibiotics and hormones additives accumulates this animals retain strain of bacteria which are resistant to antibiotics.  

in cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level. a contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness or gentleness of slopes.

explanation:

the potential energy of the reactants is 200j.

from the energy diagram, the energy of the product formed is 350j; this means that, this reaction is an endothermic reaction, because it absorbs energy from its environment.