When aphids attack a tomato plant sends out special what?

Interest groups are protected by the first amendment guarantees of petition and what other freedom?

The information box says that the han added 4,000 miles of wall.refer to the mileage scale.how can this be true?

Which of the following was a major outcome of european imperialism in africa after the industrial revolution? o a. the area around the suez canal experienced decades of military conflict o b. africans in the belgian congo suffered forced labor and oppression o c. the discovery of rich matural resources led to african economic prosperity. o d. europeans brought disease to central africa, killing thousands.