Higher energy levels have orbitals than lower energy levels

Astudent observes a star from two positions of earth in its orbit, in summer and winter, and measures the change in the position of the star. which of these can be best calculated by this method?

Aperson is outside exercising. body temperature begins to rise, and the person starts to sweat. their body temperature then returns to normal, and the body stops sweating. a positive b negative c allosteric d homeopathic

Which of these substances does not protect against invaders in the nonspecific immune response? a. saliva b. mucus c. tears d. urine