At point x, only the air that is in direct contact with the sand is heated. and at point y, only subsurface sand that is in direct contact with the hot surface sand can gain heat. this means that mostly is occurring at points x and y.

Select the correct answer from each drop-down menu proteins are

What is the one part of the nucleotide  that differs among the other different nucle  tides?

Which of the following statements is correct in hour our immune system responds to a potential pathogen? a. the adapted immune system will call on the innate immune system to destroy the pathogen. b. b cells will start reading the antigen code immediately and call t cells to assist in destroying the pathogen. c. the skin will be the first line of defense, and then the many phagocytes in the bloodstream will attempt to consume the possible pathogen. d. the t-cells in the adapted immune systems are the first to recognize the pathogen vaccines are weakened forms of disease causing microorganisms, which are given to patients to prevent disease. after the vaccine is administered, the immune system responds by creating a(n) to recognize the a. antigen, antibody b. antibody, antigen c. antibody, antibiotic d. antibiotic, antibody