<span>
They come apart or lose their shape. </span>
A
biological catalyst that speed up the rate of chemical reaction in the body is
known as Enzymes. Many processes in the body depend majorly on enzymes and they usually function by forming enzyme- substrate complex. However, large
temperature and pH will cause the enzymes to denature this is because all
enzymes are proteins and these extreme conditions will affect the bonds in
their tertiary structure.
As for this problem, the most probable answer and the most likely answer for this one would be D. the effect of pesticides on organisms in the environment.
A toxicologist would only study about chemicals and their effect on organisms in the environment. Pesticides are chemicals made to combat organisms that aren't wanted particular parts of the environment such as crops and rice field. These pesticides don't just affect those organisms that are targeted, but even the users and other organisms that may have come in contact with pesticides.
Books.. GOogle..Bing.... oh Wait BRAINLY
The answer is D, metaphase