Which of these qualities most likely helped Ptolemy construct the scientific explanation of the solar system? originality and creativity
generosity and helpfulness
consideration and compassion
kind-heartedness and flexibility

Which of the following is not a food produced in rainforests? a) coffee b) cocoa c) avocados d) wheat

Crossing over and independent assortment are important activities that occur during meiosis. what is the significance of these activities

Imagine a self-reactive t cell that has not undergone clonal deletion in the thymus (that is to say, it has escaped central tolerance). if it encounters self antigen in the absence of an infection or inflammation, what will happen to this self-reactive t cell? (select two answers) (a) the t cell undergoes clonal expansion. (b) the t cell gains effector functions. (c) the t cell undergoes apoptosis. (d) the t cell becomes activated. (e) the t cell becomes anergic.