I think this would answer your question. I did this in school and I only got a few wrong....
Answer:
A limiating factor is what limits the poupulation in an ecosystem. For example, biotic limiting factors include food, mates, shelter. Without these things the poupulation would decrease. becuse food, mates, and shelter are limited it limits the poupulation. an example of an abiotic limiting factor is a predetor. Predetors limit the poupulation of there pray.
Explanation:
During blood typing, the blood plasma is checked for antibodies. This is what is meant by "anti" in the statements. Keep in mind that if the antibody against a specific blood type is present, the blood cannot have that type. So, if anti-A is present, the blood type is not A.
Moreover, the Rh antigen determines the positive (present of Rh) and negative (absence of Rh) nature of blood type. If the anti-Rh is present, the blood type is negative. Using this information, we see that:
a) A negative
b) B positive
c) AB positive
d) O negative (O because both anti-A and anti-B are present)
e) <span>AB negative (AB because neither anti-A and anti-B are present)</span>
