CLEP Biology Terms & Definitions Practice Test

Question 1 of 3
94% Get this Question Right
Human Embryo Blood Circulation
Defend against rumors and cells with viral infections
Normal heart circulation, flows out aorta and splits into umbilical arteries and normal arteries, then later comes back in both umbilical veins and normal veins
Proteins that quicken chemical reaction so more cell activity can happen faster
More than two allele types for a certain trait. 3 alleles for blood type (A, B, O)