Answer:
Role of organisms in the nitrogen cycle:
Bacteria play a central role: Nitrogen-fixing bacteria, which convert atmospheric nitrogen to nitrates. Bacteria of decay, which convert decaying nitrogen waste to ammonia. Nitrifying bacteria, which convert ammonia to nitrates/nitrites.
Explanation:
I THINK THIS IS SHORT AND EASY
<span>There are many differences between these groups. Including the sporangia size and structure, type of spores produced, structure of the gametophyte generations, the way each generation lives, some are parasitic some aren't, the habitat. etc. It would require a detailed list of information. Try looking up basic characteristics of each group and making a table to compare them to the ferns. You could use: sporangia, gametes, sporophyte appearance, habitat etc.
They are all vascular by the way, including ferns. The familiar mosses are not, they are Bryophyes which you have not asked about. The club mosses for example are Lycophytes, and very dissimilar to familiar moss.</span><span>
</span>
Answer:
Firstly matter is definite as anything that has a mass and occupies space. Does air has those qualities? Yes. air contains of molecules and makes up the mass component and have you ever try compressing air? From that you knowa it occurs space
So what must be true is that it must have mass and occupy space