There are four large ant mounds in your yard. As you are watching television, you see an advertisement for Ant-B-Gone. You purchase Ant-B-Gone with the intent of applying it to three of the four ant mounds. You decide to add 10 grams of Ant-B-Gone to one mound, 20 grams to a second mound, and 30 grams to a third mound. A fourth mound is left untouched. You develop a hypothesis that applying Ant-B-Gone does not influence the number of ants killed. You observe the ant mounds over a week.   In this experiment, what is the independent variable?

A purebred plant that produces yellow seeds is crossed with a purebred plant that produces green seeds. The F1 plants have yellow seeds. What is the expected phenotypic ratio of seed color of the offspring of an F1 × F1 cross?

Which of the following are solid particles and liquid droplets suspended in the air we breathe?

____________ is formed from the remains of trees, ferns, and other plants.

Which of the following gases is not produced from anaerobic decomposition?

Which form of energy refers to energy in motion?

The difference between E. coli O157:H7 and other strains of E. coli is:

Which energy source would lead to deforestation and increased carbon dioxide levels from excessive use?

  Looking at the above image, which room could potentially produce asbestos and formaldehyde?

Figure 1.1 Atom and its arrangement of subatomic particles. True or False. The element pictured in Figure 1.1 is an ion.