The answer from my knowledge would be B.
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✭✮Here is your Answer✭✮
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Answer:
<u><em>True</em></u>
Explanation:
<u><em>Most gymnosperms have reproductive structures called cones. Male cones produce pollen. Female cones contain at least one ovule. An ovule is a structure that contains an egg cell. After being fertilized, the ovule develops into a seed.</em></u>
The immune system, and the excretory system
(Honestly, all of them work to keep us 'healthy', but I believe these are the ones you're looking for)
<span>The ring of muscles that guards the opening between the stomach and the duodenum is the </span>pyloric sphincter
