Humans are homeothermic which means that we try to maintain the

Humans aren't the only mammal that is homeothermic. There are several other mammals that are homeothermic as well. When we say homeothermic, we mean that they are able to sustain a constant body temperature regardless of the wide range of environment temperatures. Although, it's impacted within time-to-time. They are able to maintain a steady body temperature, regardless of external temperatures. If you have any questions, ask me! I hope I helped you.

Nimbostratus is the correct answer.
explanation: nimbostratus clouds are the type of clouds that are mostly likely present on gray, rainy day. these clouds produce continuous rain, snow and there is no thundering or lightening either.

Organism, organ system, organs, tissue, cells