I think it's four boxes in a row with arrows pointing to three boxes below
- positively affected the lives of the Europeans
Explanation:
In terms of benefits the Columbian Exchange only positively affected the lives of the Europeans. They gained many things such as, crops, like maize and potatoes, land in the Americas, and slaves from Africa. On the other hand the negative impacts of the Columbian Exchange are the spread of disease, death, and slavery.
Polychaeta generally refers to a class of annelid worms with segmented body parts.
Even though all of the answers are annelid worms, polychaetes are generally marine animals, so I would say that the answer is most likely Clam Worms.
<span>take the .9 meters it has to travel and multiply that by the 1 second it take to get 150 meters. Next all we have to do is take the product you get form that and divide it by the 150 meters. You should end up with 0.006 seconds to get 0.9 meters in the nervous system</span>
