It is unlikely that all of your mice die suddenly of old age. There must have been disease/virus/bacteria etc that caused the death of the mice. One mouse probably caught it and introduced it to the others. If you had just recently gotten a new mouse and introduced it to the others without quarantine, it could have had an infectious disease that ended up killing all the mice. This illustrates the importance of quarantine when you buy a new mouse. If they had been eating the same food then it may also have been something they had eaten - they could have eaten something poisenous.
The injection of dead S bacteria by Griffith resulted in no harmful effects on the mice. However, when the live R strain was injected along with the dead S bacteria, it caused the mice to become sick and die. This experiment demonstrated that the genetic material from the dead S strain could transform the harmless R strain into a deadly one.
One factor that can affect the populations in an ecosystem is that, if an ecosystem had owls with no predators, the owl population would increase and eat all the mice in the ecosystems. The population of the mice would decrease more and more.
Deer mice, like other mammals, have a diploid number of chromosomes. For deer mice (genus Peromyscus), the diploid number is typically 40 chromosomes. Therefore, in their gametes, which are haploid, there would be 20 chromosomes.
The pathogenic DNA from the dead bacteria became active when combined with the DNA in the live bacteria. When injected into the mice, this reactivated DNA caused the disease and the mice died.
Only certain fungi are edible and these can be eaten by mice.
I could not find anything that said kerastase oleo caused cancer in mice. It is probably not the best substance for them to eat, but would caused poisoning and not cancer.
yes. they will stop eating suddenly if they are.
give them more food
1 cat
The best age to start handling baby mice is four to five weeks.
No . . . if they were, then they would be called mice!
cats mice rice
no where would they get the mice it would be dead right now
More food is available as grain is harvested.
Yes mice's is correct for the plural possessive of mice.
Mice can have babies whenever, not just in the spring. A female mouse ovulates every five days, or rather, can get pregnant every five days. Once a female mouse is pregnant, it will take about twenty-days for the baby mice to be born.
3 cats, 3 rats in 3 minutes means that each cat finishes one rat in 3 minutes. 100 cats would be able to eat 100 rats in 3 minutes, as long as they don't get sidetracked into fighting or mating that is.