They decline . or get overtaken .
The elimination of an organism in an ecosystem takes out all balance. There may be an overpopulation of some organisms, and an underpopulation of others. For an example, if rabbits were taken out of the food chain, there would be an overpopulation of grass, and underpopulation of what eats rabbits.
Answer:
Portugal was the first European power to establish a bridgehead in maritime Southeast Asia with the conquest of the Sultanate of Malacca in 1511. The Netherlands and Spain followed and soon superseded Portugal as the main European powers in the region. In 1599, Spain began to colonise the Philippines.
Explanation:
<span>a. a natural resource and a major river</span>
conservation, international agreements, managed use,
public awareness
