A: Amoeba
B: Bacteria
C: Cell
D: DNA
E: Evolution
F: Food chain
G: Genes
H: Homeostasis
I: Invertebrate
J: Jejunum
K: Karyokinesis
L: Ligament
M: Meiosis
N: Neuron
O: Oncology
P: Pathogen
Q: Quiescent center
R: Reproduction
S: Sarcomere
T: Tissue
U: Urochordata
V: Virus
W: White Blood Cells
X: Xanthophyll
Y: Yeast
Z: Zygote