As you open the door to your house, you feel a rush of cold air. Explain what is happening and what form of heat transfer is involved.

What kind of crystalline solid is graphite? o a. molecular solid b. metallic solid o c. network solid d. ionic solid

What is turgor pressure, what causes it, and what does it do for a plant?

The vaccine in a flu shot contains weakened flu viruses. how does a flu shot work with the immune system? a. it destroys lymphocytes. b. it destroys macrophages. c. it activates macrophages. d. it activates lymphocytes.