A flea and dog are an example of Choose... Commensalism herbivory mutualism parasitism , because the flea irritates the dog's skin and feeds on its blood. Certain bacteria live in the digestive tract of humans, and their relationship is an example of Choose... Mutualism commensalism herbivory parasitism because the bacteria help humans to break down the food they eat. Cattle egrets eat insects off the back of an elephant, which is an example of Choose... Erbivory parasitism mutualism commensalism because the cattle egrets benefit without either harming or helping the elephants.

Which of the following is the main purpose of using an anchored network of booms which funnel debris to a collection area?

Zac wanted to determine the measure of r and of ? r in the triangle below. to fine the measure of r, zac sets up the problem.42^2 + 24^2 = r 2. determine whether zac set the problem up correctly.

Project: analyze it! data collected over the past century shows the earth currently in a slight warming trend, with an increase over that period of a little more than 1.0°f in average global temperature. the question of what is causing the trend has sparked controversy in both scientific and political circles. some argue that while temperature fluctuations are a normal part of the earth's climate cycles historically, an increase in co2 produced by industrial pollution and other forms of human activity is contributing to and even accelerating the increase, potentially leading to significant environmental problems. others argue that pollution-caused co2 is not a factor and that the increase is caused by natural cycles alone.objectivesresearch credible positions for and against the existence of global warming. write a short essay briefly outlining each perspective. directions locate two well-researched, credible articles, one for and one against global warming. after reading the articles, write a 300-word essay addressing the following: what is global warming, as described in the articles? what arguments are given for and against the idea. what actions are recommended by each position? in your opinion, what can be learned from the debate? what would you like to do next?