From simple questions to complex issues, IDNLearn.com has the answers you need. Find reliable solutions to your questions quickly and accurately with help from our dedicated community of experts.

As a new curator for a large public aquarium in your city, you are in charge of correctly identifying some of the animals presently in your care. You have two adult animals in tanks in front of you, and you know that one is a lamprey, and the other is a hagfish. Which feature would allow you to correctly identify each animal?.