Rating Newest Oldest. Best Answer: yes carbon dioxide is a pure substance, provided there is nothing else in it. as soon as you add some oxygen (O2) or methane (CH4) etc it is not pure. the actual molecule is CO2, one carbon and 2 oxygen atoms everytime which makes it pure. it is the same as saying pure salt. salt has sodium and chlorine in it but is still a pure substance provided nothing else is in it.
Yes, mother cats do mate with their offspring. I had cat which had become so old that my family members used to call her grandmother cat. I had once seen her mating with her offspring and THEIR offspring at different times!
In cat colonies, for example, with 14 hours of light and 10 hours of darkness, as well as constant temperatures, female cats will be in the breeding cycle year-round. The female is able to bear young as early as 7 to 9 months of age and is fertile another 7 to 9 years. Usually after that, the cat can no longer bear kittens, although there are exceptions.