Which of the following statements about erosion is true?
a.
erosion occurs as a result of drastic changes in temperature.
b.
erosion occurs when wind or water moves over sediment, soil, or rocks.
c.
physical and chemical are the two types of erosion.
d.
movement is not required for erosion to take place.

Glutamic acid: hydrophilic or hydrophobic? positive, negative, or neutral? valine: hydrophilic or hydrophobic? positive, negative, or neutral?

What is thought to have caused the mass extinction at the end of the cretaceous period?

Listed in the item bank are some key terms and expressions associated with the categories seen in the venn diagram. to find out more information about items, some have more details available when you click on them. drag and drop each item onto the proper area of the diagram. if an item describes more than one category, be sure to place it in the overlapping space. viruses are tiny infectious pathogens that cause many different diseases, such as polio, and the flu. though they are similar to one celled organisms in some ways, in many ways they are very different. use the venn diagram below to show the similarities and differences between viruses and living organisms.