DDT was hazardous because it:

A. decomposed too quickly

B. killed everything it was sprayed on

C. increased the amount of bacteria in soil

D. was carried all over the world by wind

Where is the largest amount of energy found in a food web?

What components of soil are important for plant growth?

DNA and ran are made up of what

Why is a particular sequence of bases in a segment of DNA important to cells? A. Some base sequences contain the order of sugars in polysaccharides. B. Some base sequences cause the release of lipids from the nucleus. C.

which of the following bacteria that might be capable of producing endospores? a. bacillus b. cocci in chains c. spirillum d. vibrio e. none of the above

Which of the following examples can cause gene flow between populations?

Predict: logging removes vegetation that anchors soil and prevents erosion. how do you think logging will affect a coral reef? explain.

Describe how an amoeba feeds

Areas of the brain involved in memory are located most closely to areas of the brain responsible for our sense of

Diphosophorus oxide is held together by which sort of bonding?