Soil erosion is mainly due to which of the following reasons?
wave action
earthquakes
heavy rainfall
deforestation

Classify the structures as homologous or analogous, depending on their structure and function.

Round seeds and yellow seed color are dominant to wrinkled seeds and green seed color. which punnett square represents the correct way to set up the cross rryy  ´  rryy? 

Describe how a student should adjust the microscope to see the cells on a slide more clearly?