Which of these cell types is NOT an immune cell?
A.
leukocyte
B.
phagocyte
C.
lymphocyte
D.
erythrocyte
A patient's immune system is able to recognize invading cells but is unable to remove these cells efficiently. This patient most likely has a decreased number of
A.
T cells.
B.
B cells.
C.
lymphocytes.
D.
phagocytes.

The answer is B-cells and T-cells

Explanation:

hopefully this is correct. (:

the answer to your question is sperm

the diploid number of chromosomes is sometimes represented by the symbol 2n. for the fruit fly, the diploid number is 8, which can be written as 2n = 8, where n represents twice the number of chromosomes in a sperm or egg cell.