Well, the seedless plants reproduce and when they do produce, they provide good for the consumers in the environment and omnivores . Also when reducing, the release carbon dioxide, and when the animals die the body’s leave nutrients , which means that it will dig into the soil and will be used by other organisms.
I dont see any options. Biotic factors are living factors, abiotic are non-living.
Here are some examples of biotic factors in a beach ecosystem.
Fish, crabs, birds, turtles.
-Steel jelly
A whole skeletal muscle is considered an organ of the muscular system. From a sample response:)