PLEASE ANSWER ASAP FOR BRAINLEST a lymphocyte that produces antibodies to attack invaders *
A. immune system
B. Thymus
C. Bone marrow
D. B and T cells
E. Secondary lymphatic tissues

Which statement is true about the cell theory? a) it is well-supported by evidence. b) it is unchangeable and permanent.

Creation of an unnaturally uniform sample to represent a diverse populationcan be avoided by: a. including only willing b. asking another scientist for .c. choosing only identical participants.d. selecting individuals at random.

Which phase of the cell cycle ensures that identical copies of the dna are made for daughter cells?