An internal skeleton is used to help an organism hold its body up and keep from falling, while a stem stores nutrients, and produces new living tissue, and transports fluids.
Lycopodium is a family of fern-allies .
They are mostly a flowerless plants with widely branched, with little and simple,
needle-like like leaves that
cover the branches thickly and stem while Equisetum usually called horsetail, snake
grass because it more like a tail of a horse and its the only living genus in Equisetaceae,
a family of vascular
plants that reproduce by spores rather than
seeds.
Answer:Carbon dioxide molecules
Explanation:
A community for different living organisms that support each other is called an ecosystem. The answer is (A) an ecosystem.
