Saturated fats have long straight tails of fatty acids, while unsaturated fats have kinks in their tails created by the double bonds. the kinks prevent the fatty acids from packing together as tightly. ectothermic (cold blooded) animals need to keep their membranes fluid at cooler temperature and thus contain their membranes.

This is s cute awee : (( . well if she's showing you signs that she may like you , then shoot your shot ! don't be afraid . & if you're unsure that she's giving you these signs , then wait out for a little bit . most girls are different . some may act really sweet , but only bc you're a good friend of hers . that , or she might like you . you just never know . but i think you should sit down with her & tell her how you feel . but don't be awkward & shy . just be straight up & tell her how you feel . if the feelings aren't mutual , then don't cry about it . you need to respect her decision & look for others in the world . feelings can be difficult & confusing , but don't be afraid to show them . i say you play it out & if you're still unsure about it , talk to her . - rach

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what are the options

That is false even though water expands when frozen nothing changes at all