How were the first people who inhabited the islands of oceania able to sail there? they used a navigational technique known as wayfinding. they read the maps and nautical charts left by european explorers. they used an instrument called an astrolabe to determine their location. they followed the course of migratory sea animals.

70 pts answer the following questions in full sentences and paragraphs, using at least 150 words, in the essay box below. 1. which organisms are carnivores? herbivores? omnivores? 2. if the ecosystem is balanced, which populations should be the largest? the smallest? 3. imagine a group of hunters kills half of the rabbit population. how will the other organisms be affected? 4. imagine disease kills 85 percent of the wolf population. how will the other organisms be affected? 5. imagine a foreign mountain lion species is introduced into the ecosystem. how will the other organisms be affected?