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!
Some do, and some don't, similar to humans. It depends on the species to be more specific. The male fox will often hang around to help raise the young. However, during the next year, some will mate with the same partner again while others will find a different mate.It's all about fitness of the species.typically foxes mate for life. the ones that do, if the male dies, then the female will find another mate, but if the female of the pair dies, then the male will not mate with another female ever again.he male fox will often hang around to help raise the young. However, during the next year, some will mate with the same partner again while others will find a different mate.