Please read the following pages before answering the questions. Use the link listed also to help you. Read pages 172-175. https://intervisualtechnology.us/uploads/PDFs/Zool… https://www.thoughtco.com/the-main-mammal-characte…

1. What are the two main distinguishing features of mammals?
2. What are the forms of mammalian hair?
3. Describe the hair of sea otters.
4. Do whales have hair?
5. What are mammary glands?
6. Are there any male mammals that produce milk? If so, which one(s)?