Examlex
Most people's core temperature varies about ____°F.
Hormone
Chemical messengers produced by the endocrine glands that regulate various bodily functions by traveling through the bloodstream to target organs.
Phytochromes
A type of photoreceptor in plants that absorbs light to regulate growth, development, and flowering in response to environmental conditions.
Nonphotosynthetic
Organisms or cells that do not have the ability to convert light energy into chemical energy through photosynthesis.
Pigments
Substances that give color to tissues, cells, and materials by absorbing certain wavelengths of light and reflecting others.
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