gear wheel A is used to turn a gear. wheel B in an anti-clockwise directions if gear wheel A has 15 teeth and gear wheel B has 60teeth when gear wheel B makes six rotations gear wheel A will make how many rotations​

Microorganisms aren’t all decomposers; in fact, many act as producers or primary consumers in an ecosystem. how do microorganisms that act as producers benefit the rest of an ecosystem in terms of energy transfer? what about microorganisms that act as primary consumers?

Astudent observes a star from two positions of earth in its orbit, in summer and winter, and measures the change in the position of the star. which of these can be best calculated by this method?

Which blood cell spend most of their time in the lymphatic system?