Alex looked at an electric toothbrush that had a plug with three metal prongs. Why are these prongs made out of metal?

Is erythematous a disease

What is the role of iodine in the gram stain process?

The lagging strand is characterized by a series of short segments of DNA (Okazaki fragments) that will be joined together to form a finished lagging strand. The experiments that led to the discovery of Okazaki fragments gave evidence for which idea?

It takes a car 1.75 h to go from mile marker 10 to mile marker 115. what is the average speed of the car? A) 65 mph B) 60 mph C) 183 mph D) 1.6 mph

In considering the origin of cells, why do biologists focus on the origin of the cell membrane

When a bird eats a small insect it can be considered a secondary consumer but what is the bird considered as when it eats seeds?

Desert animals, such as the kangaroo rat, need to conserve water. These animals have larger kidneys than do animals that live in moist environments and thus need not conserve water.

What is the function of a nucleus in a cell the nucleus A. controlls the cells activity B. the nucleus identifies the cell as belonging to a plant C. the nucleus determines what substances enter and leave the cell D.

Which best describes emerging scientific ideas? a. never been tested b. unpublished c. supported by most, but not all, scientists d. not studied by many scientists

A sonic boom is produced by a jet. What can you determine about the jet's motion? a) It is near a mountain where echos can be produced b) Its engines produced backfire c) It is increasing in altitude d) It is traveling faster than the speed of