Answer:
This isn't a health question but...
It's possible she didn't like what she saw in you when meeting in-person. This isn't entirely uncommon in friendships (and more).
Give her some time and message her again. But if she says stop, stop.
Explanation:
Cardiovascular fitness exercises strengthen the heart and lungs.
Cardiovascular exercises basically consist of activities that will get your heart rate up. Doing so, it will strengthen your heart along with your lungs due to the increase of your heart rate.
The arctic foxes with white fur could’ve blended in more to the background and wouldn’t have been as appealing to the eye to predators. Therefore, the population of white furred foxes would carry on and the white fur gene will carry on throughout generations as long as the background doesn’t change. If the climate, conditions, or background change and they don’t camouflage anymore, they they will be more likely to get killed off and the genes will not carry on.
I hope this helped! Please mark me brainliest :)