The answer is A. Environmental conditions are not always right to produce flowers and seeds for sexual reproduction.
Most plants are able to reproduce either way because even if the conditions aren't right for the plant, it can still make more flowers so it doesn't die out.
I hope this helps! :D
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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Number 13 is C
Number 14 is C
Number 15 is B