Question

During the K-Pg mass extinction event, soot and ash were thrown into the atmosphere, darkening the sky for months. Some mammals were able to survive and proliferate. Which factor contributed to this success?(1 point)
Responses

The ability to regulate their body temperatures in the face of reduced sunlight and colder temperatures.
The ability to regulate their body temperatures in the face of reduced sunlight and colder temperatures.

A decrease in oceanic and lake habitat, leading to marine mammal evolution.
A decrease in oceanic and lake habitat, leading to marine mammal evolution.

There were new predators because the dinosaurs were instantly killed.
There were new predators because the dinosaurs were instantly killed.

Many mammals developed the ability to fly, allowing them to escape the impact site.

Answer 1

The appropriate factor that contributed to the success of some mammals during the K-Pg mass extinction event is:

**The ability to regulate their body temperatures in the face of reduced sunlight and colder temperatures.**

This ability would have given mammals an advantage in the harsh conditions following the extinction event, where decreased sunlight affected food production and temperatures dropped.