The answer is the first one ( True )
The organism that was most likely to live at the same time as brachiopods were
Trilobites
Brachiopods were like lamshells. They lived underwater, had soft bodies and their shells were bivalves.
Trilobites had three-lobed bodies. They could swim, crawl, and burrow.
Seamount and guyot are types of mountain - so we can reject those options, since we're looking for a flat surface, not a mountain.
A trench is a narrow ditch, or depression so also it's not a plain
The correct answer is abyssal plain - it's a plain typically next to a continental rise (leading to the continent) and a mid-ocean ridge.
Answer:
photosynthesis is occuring and bubbles of carbon dioxide gas being released by the leaf into the surrounding area
Explanation: