What function do most of the stem cells in adults serve? a. replacing damaged tissue b. differentiating into any type of cell c. repairing damaged dna d. growing new organs

Use the drop-down menu to complete the statement. an electron in the first energy level of the electron cloud has an electron in the third energy level.a. a lower energy thanb. a higher energy thanc. the same energy as

Assume that a student is given two different models of bacteria, with one model consisting of big bacteria and the other consisting of small bacteria. how can the student demonstate the theory of endosymbiosis using the models

Which type of respiration takes place when there is no oxygen present