Match each feature with the layer of the atmosphere that it describes. This layer is the hottest layer.
Meteorites mostly burn up in
this layer.
The International Space
Station orbits in this layer.
Air temperatures reach their
coldest.
This layer blends into space.

Which statement describes characteristics of planarians? a they live in oceans, are parasites, and reproduce only sexually. b they live in fresh water, are parasites, and reproduce only asexually. c they live in oceans, are free living, and reproduce sexually and asexually. d they live in fresh water, are free living, and reproduce sexually and asexually.