Answer:
B.) visible light
Explanation:
Electromagnetic radiation in the visible light region is the only radiation that can be detected by human eyes. When the electromagnetic waves in this region hit the rod and cone cells in our eyes, we see color. Humans do not have other specialized cells in the eyes capable of receiving and processing other wavelengths of radiation.
Explanation:



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Thallus<span> (plural: </span>thalli<span>), from Latinized Greek θαλλός (thallos), meaning "a green shoot" or "twig," is the undifferentiated vegetative tissue of some organisms in diverse groups such as algae, fungi, some liverworts, lichens, and the Myxogastria.</span>
Dimples, tounge rolling, freckles, curley or straight hair, eyes, hairline shape,etc,.
Answer:
Test crosses are used in selective breeding because they can determine the genotype of the parent.
Explanation:
Also, I see it it ur first question. Welcome to Brainly!