Answer:
Photosynthetic organisms (plants and/or phytoplankton) are at the bottom of the food chain.
Explanation:
Because men have an x and a y and women have 2 x's, but sometimes a man can only have a y and a women can only have an x so it messed up
This is called passive immunity. Passive in such a way that the vaccine came from another human blood plasma which contains antibodies that temporarily combats disease-causing virus/bacteria. Vaccination with gamma globulin transiently boosts patient's immunity against illnesses or diseases.
