I believe It is A because fissure eruptions are common on large volcanoes and also is built up by many layers of hardened lava, tephra, pumice, and volcanic ash.
The organ systems work together to regulate body processes. The correct option is B.
<h3>What is an organ system?</h3>
An organ system is a biological system made up of a collection of organs that collaborate to perform one or more functions.
Each organ in a plant or animal body serves a specific function and is made up of distinct tissues.
Every organ in the organ systems work in coordination to perform all the bodily functions. The organ systems work together to regulate body processes.
Thus, the correct option is B.
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<span>How does the population of rabbits in Yellowstone National Park affect the population of snakes is the correct answer. Hope this helps, and Brainliest would be appreciated!</span>