★ Biotechnology Quiz
What is the role of helper T cells in the immune response?
A. They produce antibodies directly.
B. They activate B cells and promote clonal expansion.
C. They destroy antigens directly.
D. They secrete hormones to regulate metabolism.
Select your answer:

Topics:
MS Neurology Respiratory Acidosis Asexual/Sexual Reproduction Bone Marrow Histology Basic Structure of the Human Body Perioperative Nursing Care Blood Groups Respiration Anatomy and Physiology Biochemistry of Diabetes Forensic Pathology Inhalation Injury Nutrition in Animals Hematology / Oncology Anatomy - Cellular Respiration Hospice BasicsOther quiz:
Nutrition › ViewThe _____ carries water and minerals from roots to other parts of the plant
A. xylem
B. phloem
C. stoma
D. guard cell
Pharmacology › View
A patient weighs 196 pounds. What does he weigh in kilograms?
A. 89
B. 98
C. 108
D. 119