Answer:
50%
Explanation:
The pink flower donates the r allele and produces pink flowers in 50% of the offspring.
Answer:
oxygen enters blood cells by 'diffusion'
Answer:
Adaptive immune defense system consists of lymphocytes like B-lymphocytes and T- lymphocytes. B-lymphocytes provides humoral immunity while T- lymphocytes provide cell-mediated immunity to the body.
99% of lymphocytes circulate freely in the blood and lymph. B lymphocytes differentiate into plasma B cells and B memory cells when interact with antigen presented by T helper cells.
Then plasma cells secrete antibodies in the circulation which binds to extracellular antigens through antigen-binding site. Then the bounded antigen is recognized by receptors present on phagocytic cells. This receptor binds the Fc region of antigen bounded antibody and destroy the antigen by phagocytosis.
Characteristic of the Vessel elements of Angiosperms
Answer:
considered what? the question was not finished
Explanation:
