Answer:
complement is a system of plasma protiens that can be activated directly by pathogens
Most likely ATP next time put the answer choices in for multiple choice questions.
The genotype of the Q gene is homozygous dominant because it has 2 dominant genes and when a genotypes has two of the same type of genes it is homozygous. If it has different genes it is heterozygous.
hopefully this helps
A. chemical precipitation of minerals from seawater