River otter are highly social animals. give two behavioral adaptations that reflect this.

Find the equation of the line passing through the point (–1, 5) and perpendicular to the line 3x + y = 4.

The ozone hole is at its biggest each year in the ? hemisphere in the ? season.

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?