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!
Cats can even deliver a litter of kittens sired by two different male cats if they have come into contact with more than one entire male cat at around the time that they conceive! During the first week after mating, the male catâs sperm will find the female catâs eggs, fertilise them and make the journey to the uterus, where the rest of the pregnancy will develop.