An indicator species is an organism whose presence, absence or abundance reflects a specific environmental condition. Indicator species can signal a change in the biological condition of a particular ecosystem, and thus may be used as a proxy to diagnose the health of an ecosystem.
Answer:
The correct answer is option C. impair the understanding of sound meaning but not impair hearing.
Explanation:
Damage to the human auditory cortex leads to a loss of understanding the meaning or awareness of sound. Ability to reflexively react to sounds stays as unimpaired. The reaction to found is a great function of subcortical processing in the auditory brainstem and midbrain.
This, the correct answer is option c.
Answer: alternative D.
Explanation: The animals that go through this process understand that everytime they drink the unusual-tasting liquid they will be injected, being that a very unpleasant series of events. They are conditioned, therefore, to be afraid of the unpleasantness of this process by associating pain to the actions that are part of it.
Vegans are deficient in some nutrients like animal proteins, creatine, Carnosine, and docosahexaenoic acid (DHA). So the answer is D.
<span>The correct answer is D: all of the above. Pollution has many negative effects on both the human population and the environment. If the air and water is heavily polluted, it can contaminate the human population and cause illnesses and even death. It can also taint natural resources making them unusable</span>
