Answer:
Doing experiments, maintenance and cleaning.
Explanation:
Astronauts perform tasks of the day which is supervising experiments, performing routine maintenance on station equipment and the astronauts wipe the walls, floors, and windows to keep them clean in order to avoid any type of microbial growth. Most of the activities are similar in space to the earth i.e. sleeping, eating the meal three times a day and exercise to maintain health and become active all the day.
Large polymers, ions and charged molecules
1) Sunlight
2) Carbon Dioxide
3) Water and minerals
4) Oxygen
I am not sure
Answer:
An organ that helps with digestion but is not part of the digestive tract. The accessory digestive organs are the tongue, salivary glands, pancreas, liver, and gallbladder.