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What Is a Space Station That Orbits the Earth Receiving

question 153

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What is a space station that orbits the earth receiving and transmitting signals from earth-based stations over a wide area?


Definitions:

Active Transport

The movement of molecules across a cell membrane from a region of lower concentration to one of higher concentration, requiring energy.

Facilitated Transport

A process of passive transport, mediated by carrier proteins, that allows substances to move across cell membranes without expending energy.

Active Transport

The movement of molecules across a cell membrane from a lower to a higher concentration, requiring energy.

Mitochondria

Organelles within cells that are the sites of aerobic respiration, providing energy for cellular functions.

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