What is the difference between an extinction and a mass extinction?

mass extinction is usually defined as a loss of about three quarters of all species in existence across the entire Earth over a short geological period of time.

Extinction are defined as species that go extinct simply because not all life can be sustained on Earth and some species simply cannot survive.

interphase   is the cell cycle stage in which the cell acquires nutrients, creates and uses proteins and other molecules and starts the process of cell division by replicating the dna. it is the longest stage in the eukaryote cell cycle.

the following   can go wrong during interphase:   a base pair could be mismatched during the duplication process causing a mutation.   correct answer: c

explanation:

your body is trying to warm itself up. or more precisely, sensors in your skin send messages to your brain to generate heat to your body.