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Biology
trond hansen's user avatar
trond hansen's user avatar
trond hansen's user avatar
trond hansen
  • Member for 4 years, 10 months
  • Last seen more than a week ago
  • Røyken, Norway
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About

i am 58 years old(young)my interests are very broad,sience-astronomy-biology-geology-marine biology.i simply want to know how every thing works,i have a cat named lillepus i have allways had a cat.

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Top posts
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6
What's the name of this green fruit with little pikes fallen from a city tree on the pavement?
Aug 19, 2020
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1
Will ammonia continue to accumulate in an aquarium tank if a strong antibacterial or chlorine is added to the water?
Jun 16, 2020
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0
What is this spider? Two black stripes
Nov 25, 2019
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Does baking soda interfere with digestion when cooked into food?
Oct 5, 2021
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Trying to identify a Spider found in rural Missouri, USA
Feb 28, 2022
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How can the layperson test whether a UVC light sold as "germicidal" is a fake or probably the correct wavelength?
Aug 30, 2020
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55
Cat behaving strangely for no apparent reason
45
What are the signs of an old cat dying?
38
My cat demands a lot of attention
35
My cat mixes up the floors in my building. How can I help him?
34
Stepped on my kitten's paw