Answer:
A binary star is a star system consisting of two stars orbiting around their common barycenter. Systems of two or more stars are called multiple star systems. These systems, especially when more distant, often appear to the unaided eye as a single point of light, and are then revealed as multiple by other means.
An organism is defined as pathogenic if it can cause diseases in humans. The organisms that cause diseases' like whooping cough, influenza and diphtheria are this kind of pathogen.
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Answer:
Tissues
Explanation:
Tissues are a group of cells that have the same function
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Answer:
its like a quadrant.
Explanation:q4 ,same thing but negative.
