This printable word search puzzle on the topic of Ecology & Evolution contains 31 hidden words in a 24x24 letter grid. Words go horizontally, vertically, and backwards. This word search is also available to download as a Microsoft Word document or a PDF.
active/passive immunity
vestigial homologous
geographic isolation
natural selection,
primordial soup
overproduction
endosymbiosis
Co-evolution
competition
abiogenesis
Resistance
Antibiotic
speciation
adaptation
antibodies
biogenesis
Pesticide
Isolation
variation
primitive
pathogen
bacteria
Mimicry
anatomy
Fossils
T-cells
B-cells
embryo
niche
virus
fit