Answer:
Both a torch and a star are considered to be luminous objects. In order for us to see an object that is non-luminous, it must reflect some of the light it receives from a luminous source, such as the Sun.
Explanation:
Answer:
All cells are made from the same major classes of organic molecules: nucleic acids, proteins, carbohydrates, and lipids.
Explanation:
Answer: Vestigial structures
Explanation: Vestigial structures are an anatomical feature or behavior that no longer seem to have any purpose in the present form of an organism in the given species. Usually, they are often parts of the body that used to preform important functions in earlier forms of the organism.
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