Why were cities important in Medieval Times?

Which of the following is a way that advancements in technology improve humans' ability to measure air quality and protect human health?

In the following diagram, four different index fossils are labeled: which of the labeled fossils comes from the oldest organism? a b c d

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?