It's some change in the conditions around the organism, which the organism can detect and respond to. A change in temperature, more light, or something physically poking the organism are examples.
Answer:
Antibodies and T-cells are both immune cells.
Increases
Remains constant
Remains constant
Decreases
It would be TRUE
because in meiosis the number of chromosomes becomes half so 64/2 would be 32
HOPE I HELPED!!!
