Agents of erosion can be all of the following except a. acid rain b. wind c. water d. gravity

Four types of motile cells in human body?

Which phrase is the best summary of the model shown? a. the transfer of the sun's energy through trophic levels b. a series of aerobic and anaerobic reactions c. a transformation of light energy into chemical energy d. the breakdown of food molecules

Which individual below would be considered heterozygous? a.dd b.dd c.dd