The impact of invasive species is that it may cause environmental harm, economic harm, or impact human health.
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The most appropriate answer is A !!
Less gray matter is associated with schizophrenia and is denoted as option B.
<h3>What is Grey matter?</h3>
These are usually darker tissues which are found in the brain and spinal cord. They contain a rich network of neurons present.
This is therefore the reason why schizophrenia is associated with mental health.
Read more about Grey matter here brainly.com/question/13782390
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Native shellfish populations have dramatically decreased as they are outcompeted by the crabs, causing a decrease in biodiversity.