The last universal common ancestor (LUCA) probably multiplied by duplicating all of its cellular contents, followed by cellular division .

Which of the following is a cause of a dna mutation? o a. the linking of amino acid subunits into a long chain o b. the transcription of dna into rna o c. an error in the repair of damaged dna d. the diffusion of molecules across the cell membrane submit

Awater molecule is polar because there is an uneven distribution of these between the oxygen and hydrogen atoms.

Growth of chest hair, deepening of the voice, and muscle growth are secondary sex characteristics. which most likely affects the development of these traits? testes ovaries prostate gland vulva