In this task, You are given an open-domain question that can be answered based on factual information. Your task is to provide \*short\* answer (in a few words only) for the given question. The short answer can be one or more entities or it can also be boolean \*yes\* or \*no\*.

when did mount saint helens blow its top
May 18, 1980

how many types of finch species are there
about fifteen

what are three types of tissue that can be found in the dermis

macrophages