1. Explain how the pressure difference in air causes a convection current in the atmosphere?
Warm air creates lower pressure than cold air
b. Warm air creates higher pressure than cold air.
c. Warm air and cold air have equal pressure.
d. Warm air and cold are not pressurized.
Explain:
I

Ineed to get this test done which of the following statements is correct in hour our immune system responds to a potential pathogen? a.) the skin will be the first line of defense, and then the many phagocytes in the bloodstream will attempt to consume the possible pathogen. b.) b cells will start reading the antigen code immediately and call t cells to assist in destroying the pathogen. c.) the adapted immune system will call on the innate immune system to destroy the pathogen. d.) the t-cells in the adapted immune systems are the first to recognize the pathogen