They produce food with energy from the sun
Mushu is a definitely answer
I would say the answer’s C.
You’re taking the producers(autotrophs) out of the ecosystem.
No they cannot. Lol lol lol
It should be based on the principles of immunology to understand this phenomenon: the immune system produces antibodies against an antigen that it does not possess
The AB group contains the A and B antigens on the red blood cells, so it can not produce anti-A antibodies or anti-B antibodies since it already possesses antigen A and B (otherwise it will develop autoimmunity).