If acactus stem can be used for hydration, then what can be used for hydration? Answer choices: - tree bark - leaf - fur and fat - Heat energy - Calcium carbonate - tree branch - mussels - a cactus stem
a cactus stem

If plants produce offspring with flowers, then what do plants produce offspring with? Answer choices: - stems - seeds - leaves - roots - bees - white - flowers - food
flowers

Q: If sitting down has a positive impact on health, then sitting down has a positive impact on what? Answer choices: - plants - growth - health - mobility - motion - animals - people - movement
A: health

Question: If populations of HIV do not grow through cell division because they are not cells, then what does not grow through cell division? Answer choices: - p53 - AIDS - host - DDT - lung - HIV - corn - HPV
Answer: HIV

*Question*
If an incandescent light bulb converts electricity into light by sending electricity through hair-thin fibers of glass, then an incandescent light bulb converts electricity into light by sending electricity through what? Answer choices: - hair-thin molecules - hair-thin spokes - epidermis and dermis - hydrogen and oxygen - activation energy - an electron lens - hair-thin hairs - hair-thin fibers of glass
**Answer**
hair-thin fibers of glass

(Q).
If hydrogen bonds cause h2o to expand when it freezes, then what does hydrogen bonds cause to expand when it freezes? Answer choices: - oxygen - atomic bombs - rain - NaCl - H20 - lake - hydrogen - h2o
(A).
h2o