C black holes because we wouldn't be here right now if there were
Triangle is the shape of Ebola
Answer:
Mammals evolved from a group of reptiles called the synapsids. These reptiles arose during the Pennsylvanian Period (310 to 275 million years ago). A branch of the synapsids called the therapsids appeared by the middle of the Permian Period (275 to 225 million years ago)
Explanation:
I tried:)
When the number of phytoplankton drastically decreased, this would affect the entire food web.
Phytoplankton are plankton consisting of microscopic plants. They are the autotrophic components of the plankton community and a key part of oceans, seas and freshwater basin ecosystems.
