_______________are external characters which are directly not involved in the process of reproduction
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Answer:
The International Space Station (ISS) is a modular space station (habitable artificial satellite) in low Earth orbit. It is a multinational collaborative project between five participating space agencies: NASA (United States), Roscosmos (Russia), JAXA (Japan), ESA (Europe), and CSA (Canada).[6][7] The ownership and use of the space station is established by intergovernmental treaties and agreements.[8] The station serves as a microgravity and space environment research laboratory in which scientific research is conducted in astrobiology, astronomy, meteorology, physics, and other fields.[9][10][11] The ISS is suited for testing the spacecraft systems and equipment required for possible future long-duration missions to the Moon and Mars.
SECONDARY SEXUAL CHARACTERISTICS
- The sexual characteristics controlled by hormones which distinguish between sexually mature males and female but are not directly involved in reproduction are called secondary sexual characteristics.