This is a treeless landscape that occurs at high latitudes or on mountain tops

This subatomic particle has a negative charge?

These are bays or semi-enclosed bodies of brackish water that form where rivers enter the ocean?

One documentary I asked you to watch took place in Bermuda. What were they trying to save

Based on a paper you had to read, this organism has a positive effect on lower trophic levels in cypress wetlands, including populations of invertebrates, snakes and turtles?

This is all populations in an area interacting with each other?

What group did Wangari Maathai found?

These are species that are attractive and to which people react emotionally?

This type of experiment involves observation of events that have already happened?

What do we call a cyclonic storm that occurs in the Atlantic?