Astronauts require preserved food for extended flights, and custom foods and meals can be created. Given these facts, what do astronauts need for extended flights among the following options: - hydrogen and oxygen - preserved meals - solid, liquid, gas - small meals - fresh meals - Dehydration - nutrients - surprise meals
preserved meals

Fat is used to keep animals warm, and vegetation is required by many animals for warmth and security. Given these facts, fat is used to provide warmth and what among the following options: - heat energy - energy - security - disease - concern - support - flavor - growth
security

Breaking apart rocks can cause debris, and sledge hammers can be used to break especially hard ledges of rock. Given these facts, what can be used to make debris among the following options: - erosion - rivers - a hammer - heat - wind - water pump - c-clamp - screwdriver
a hammer

Vesicle transport requires energy, so it is also a form of active transport, and much of protein transport in a cell occurs via coated transport vesicles. Given these facts, much of protein transport in a cell requires what among the following options: - protons - recycling - oxygen - energy - atoms - Nutrients - walls - Energy.
energy