Answer: Option A
Explanation:
The T-cells and B-cells of the immune system are the part of specific immune response.
If the number of T-cells dies then the ability to activate B lymphocytes will also be lost as they help B-cells to secrete antibodies and macrophages to destroy the antigens.
T cells also helps in the activation of cytotoxic T-cells to kill the targeted cell which is affected by antigens.
hence, the correct answer is option A
Answer:
The range of physician shortages projected by 2033 include the following: Primary care -- between 21,400 and 55,200 physicians Nonprimary care specialties – between 33,700 and 86,700 physicians Surgical specialties – between 17,100 and 28,700 physicians
Explanation:
Answer:
Parathyroid (PTH)
Explanation:
In the kidney, parathyroid hormone (PTH) blocks reabsorption of phosphate in the proximal tubule while promoting calcium reabsorption in the ascending loop of Henle, distal tubule, and collecting tubule. Parathyroid hormone (PTH) promotes absorption of calcium from the bone in 2 ways.
Answer:
Missed period
Explanation:
Symptoms of early pregnancy can include a missed period, an increased need to urinate, swollen and tender breasts, fatigue, and morning sickness
