Examlex
Select the element that never forms more than one bond in a Lewis dot structure.
Ultraviolet Radiation
A form of electromagnetic radiation with a wavelength shorter than that of visible light but longer than X-rays, which can have effects on the skin such as tanning or burning.
Rod-Shaped
Describing an object or organism that has a long, slender form, similar to a rod or stick.
Paired Structures
Structures in the body or in other systems that occur in pairs, often symmetrical on either side of the body or system.
Chromosomes
Thread-like structures located inside the nucleus of animal and plant cells, made of protein and a single molecule of DNA, carrying genetic information.
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