The answer is False. The mediastinum is not a cartilage that
forms the lower portion of the breast bone, the mediastinum is the middle part
of the chest cavity, which is located between the lungs of an individual. The
Mediastinum is the area located between the lungs, it contains organs such as
the heart and its large arteries and veins. It may also include the trachea,
the esophagus, the bronchi and last but not the least the lymph nodes.
A,B,C,D I'm pretty sure, but check with others who answer the question too.
Nuclear reactors use hydrogen and they are an up and coming energy source.
There are also hydrogen fuel cells.
Answer:
c. mosses
Explanation:
Primary succession occurs in places that have never been occupied by a community. Simple species are established first, as they help enrich the soil, allowing other species to become established. The first organisms to appear in areas of primary succession are often pioneer species such as mosses or lichens.
Hope this helps. :)
