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

Which brain area near the occipital lobe has been shown to become active when motion stimuli are perceived, and when the direction of an object's movement is accurately detected?

Which of these events explains the presence of the volcano?

When chromosomes are half way between poles what phase of the cell cycle is it?

What is the effect on the tides when the gravitational force of the sun is added to that of the moon

Give another example of electrical energy being transformed into light

Hat type of substances are commonly transported into cells by channel proteins

Who received profits from a corporation? A. The employee B. The company officials C. The managers D. The shareholders

An ecosystem includes a. only exotic factors b. only biotic factors c. biotic and abiotic factors d. only abiotic factors

13. What is the name and function of the main lymphatic tissue found in the intestines? A. Thymus gland: enables the conversion of immature lymphocytes into mature T cells B.

Which of the following statements about iron is FALSE? Almost 2/3 of our body store of iron is found in the hemoglobin in our blood. Normally 10-15% of your daily intake of iron is absorbed. Vitamin C prevents the absorption of iron.