Red fire ants are native to South America. They entered and spread across the United States in the 1930s. They build large nests in the form of dirt mounds and live in colonies. If bitten by a red fire ant, an extremely painful and itchy blister appears that may become infected if scratched and broken. Red fire ants attack a large variety of organisms if threatened or provoked.
Which solution would be most effective in controlling the spread of these ants in the United States?
Physically break the ant mounds.
Spray weed killer around the ant mounds.
Kill individual ants when noticed.
Add biological control organisms to the ant mounds.

Ry was studying two populations of the same species of lizards. one population lived on an island and the other lived on the mainland. both populations were affected by a hurricane that hit the island and the mainland with equal force. a year later, henry was testing the gene frequency and saw a decrease in genetic variation in the island species, but not in the mainland species. which best describes a conclusion he might have reached? gene flow greatly affects small populations, but large populations can recover. genetic drift greatly affects small populations, but large populations can recover. gene flow greatly affects large populations, but small populations can recover. genetic drift greatly affects large populations, but small populations can recover.

The intervention of extraterrestrials has been used to explain the bermuda triangle, a region of the atlantic ocean where ships and planes are frequently lost, leaving no evidence behind. how would this explanation best be characterized?

Where do the respiratory and circulatory systems meet? a. in the heart b. in the muscles c. in the lungs d. in the brain