★ Reproduction Quiz
What cells secrete testosterone?
A. Sertoli cells
B. Spermatocytes
C. Spermatids
D. Leydig cells
Select your answer:

Topics:
MEDICINE Cell Cycle Problems EMR - Trauma Renal Pharmacology DNA Healthcare Delivery Systems and Insurance Sense of Sight Physical Education and Health Disease & Immunity Stem Cells & Cell Differentiation The Human Eye Perioperative Nursing Care Breathing System Body Structures and Organ Systems Non-Communicable DiseaseOther quiz:
Excretory and Musculoskeletal System › ViewHow many muscles are there in the body?
A. about 63
B. about 36
C. about 630
D. about 360
Biology › View
Cell walls are made of cellulose.
A. Plant cells
B. Animal cells
C. Fungal cells
D. Bacterial cells