What is the purpose/function of the chorion in mammals?

What adaptations can prey use to avoid predation

You arrive late to a biological seminar. however, just as you enter the room, you hear the speaker referring to the "five-prime end" and the "three-prime end" of a macromolecule. immediately, you know that they are talking about a: ]

What are examples of the plant life and animal life that can be found in each type of terrarium