What are 3 basic categories of control?

How many Savannah elephats are there left in the world? What is the animal that has shaped the landscape of North America more then any other animal? What are the three categories into which crop pests can be grouped? Can giant panda bears live in the jungle? What are some endangered plant species in Antigua and Barbuda? What name is used for the treeless biome in high latitudes that has permafrost and vegetation such as lichens and moss? What is china doing to help pandas? What species kill their own? What types of mushrooms are in British Columbia? Are bilbis endangered? Why is a golden bamboo lemur endangered? What is stomatal dilemma? What are some positive and negative consequences of a loss of biodiversity? What is a hawks prey? What are the effects of introduced species into Australia? Is the brahminy kite endangered or was endangered? What are 3 biotic factors of a wombat's environment? Is it possible to survive without petroleum products? Does a pandas fur change color? Do pandas eat fish?