ON A TEST
In which of the following ways does a virus resemble cellular organisms? (a) They divide by mitosis. (b) Their genetic material uses the same genetic code. (c) They can grow on artificial media. (d) They have mitochondria for aerobic respiration.

Which is not a likely outcome after extensive irrigation of dry farmland? useless, unproductive soil salinization of the soil depletion of groundwater nutrient-rich soil

What causes darkening of the skin as melanin production increases

The unique structure of the neuron is dedicated to the efficient and rapid transmission of neural signals. the relationship between neurons, the spinal cord, and the brain constitutes an elaborate communication system throughout the human body. all but one of the functions listed below are a result of this interaction.