Answer: lower the activation energy for reactions they catalyze
Explanation: this should be the correct answer but i'm not seeing it for your question, if you forgot to leave it out well this is correct, however if you did not leave this out then I would say A.
B An ecosystem because it is i dont know how to explain but i think is that one
In ecology, the competitive exclusion principle, sometimes referred to as Gause's law of competitive exclusion or just Gause's law, is a proposition that states that two species competing for the same resource cannot coexist at constant population values, if other ecological factors remain constant.
Answer:
The legal term for an advance directive that specifies an individual's end-of-life wishes for medical treatment without necessarily appointing a designee to make legal decisions for him or her is called a living will
Explanation:
A living will is made when alive and it comprises of how one intend to distribute his/her wealth without any interfere by others decision even when dead. The documents must have been signed when alive by the individual