Answer:He or she is looking for a difference in the two objects
Explanation:
Answer:
The correct option is B (natural killer cells).
Explanation:
Natural killer cells: They are defined as the type of cytotoxic lymphocyte which are critical to the innate immune system. The NK cells play an important role in to provide rapid response to tumor formation, virus infected cells, and acting after three days of infection.
While cancer cells die, they release some antigens, than these antigens are recognized by the immune system, and later they are presented on the immune cells which are known as antigen presenting cells. So, if these cells are absent than they increase the chances of developing malignant tumors.
Recessive traits thats what they are called
The desert and tundra are alike because they both have limited available water.
Hey there!
Here is a simple food chain:
Grass >>> Grasshopper >>> Mouse >>> Owl
Hope this helps!
~Autumly