Examlex
Which group of vertebrates was the first to evolve a waterproof egg, which allowed the group to move away from water, deeper onto dry land?
Absence
The state of being away or not present, often used in the context of missing work or responsibilities.
Fight-or-Flight
A physiological response to perceived harmful events, attacks, or threats to survival, leading to an increase in heart rate, energy levels, and alertness.
Learned Reaction
A behavior or response developed as a result of experience.
Environmental Stressor
Elements within the environment that cause stress or discomfort to individuals, potentially affecting their health and well-being.
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