Answer:
particulate hypothesis of inheritance
Explanation:
This states that the inheritable factors retain their identity generation after generation.
An allele whose trait always shows up in the organism is called the answer is dominant allele.
C. Organ System
Like said in the definition above, an organ system is a group of organs working together to perform a specific function for the organism.
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Photoreceptor proteins are light-sensitive proteins involved in the sensing and response to light in a variety of organisms. Some examples are rhodopsin in the photoreceptor cells of the vertebrate retina,phytochrome in plants, and bacteriorhodopsin<span> and bacteriophytochromes in some bacteria.
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