No, they do not show the same fecundity. Fecundity means the ability to produce offspring in great numbers. Not all species give birth to numerous or even multiple offspring. For instance, a dog has anywhere from 3 to 7 puppies on the average birth. A horse, on the other hand, has one foal at a time. All other factors being equal, a dog--because of its ability to produce multiple offspring (as many as 30 or 35 pups) over a period of 4 to 5 years--would be consider more fecund than a horse which, during the same time period, would only produce 4 to 5 offspring.
maybe all species have the same karyotype;/
they can inter breed and produce fertile offspring.
same species yes
They are all the same species
What If 2 folks share the same species what are all the levels they will share?
Dog can breed dog. It can have same species.
Same species
No. Some species, such as budgerigars or cats, show wide variation of colour among individuals. Other species which are more uniform, such as kookaburras or cheetahs, may show subtle variations in colour and pattern. Further, although species have the same behavioural instincts, all individuals will have different personalities, and some of these differences may be quite pronounced.
Their size
Not at all
yes
yes