Plz help I will mark you brainlist

Which of the following can occur to two segments of a population if they are geographically isolated 1.) they can only share some types of genes 2.)both groups most likely become extinct 3.)they find a way to come back together 4.)eventually they become separate species

Which gas prevents the spread of fire and extinguishes it? is a type of compressed gas that prevents the spread of fire and extinguishes it.

Tinas calculations of the tarantula found that the spider was able to cover 20 centimeters in 5 seconds what was the average speed of the spider whats the answer, speed, distance and time