Biology Word Search — Hard

Play a free online Biology word search puzzle. Difficulty: Hard. Find all 12 hidden words on the 12×12 grid below.

Words to find

Plus 4 hidden bonus words.

Biology word list, defined

STRUCTURE /strʌktʃər/ · noun, verb
The arrangement of and relations between the parts of something. A building or other construction. Related: framework, organization, arrangement, layout.
RESPIRATION /rɛˈspɪrəʃən/ · noun
The process of breathing in and out, or the act of breathing. The process by which oxygen is taken into the body and carbon dioxide is removed. Related: breathing, ventilation, expiration, inspiration.
CARNIVOROUS /kɑːrˈnɪvərəs/ · adjective
Feeding on the flesh of other animals; meat-eating. Also used of plants that trap and digest insects and other small animals. Related: predatory, meat-eating, flesh-eating, rapacious.
POLLUTION /ˌpɒljʊˈteɪʃən/ · noun
The presence of pollutants in the environment, especially in the air, water, or soil, which can harm living organisms or ecosystems. Related: contamination, polluting, taint, corruption.
SYMBIOSIS /ˈsɪmbiəsɪs/ · noun
A close and often long-term relationship between different biological species, in which one species, the symbiont, lives in close association with another species, the host, and the two have a close and often interdependent relationship. Related: mutualism, commensalism, parasitism, cooperation.
SPECIMEN /ˈspɛkɪmən/ · noun
A sample or example of something, especially one that is typical or representative. A preserved animal or plant specimen, especially one used in scientific study. Related: sample, example, illustration, model.
SPATIAL /spəˈtɪəl/ · adjective
Relating to or involving space, or the study of the relationships between objects in space. Related: geographic, topographic, cartographic, metrical.
STIMULUS /ˈstɪmjələs/ · noun
A thing or event that causes a reaction or response, especially a change in the level of activity or the rate of progress. A signal or impulse that stimulates a response or activity. Related: impetus, motivation, incitement, provocation.

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