The Chondrichthyes are the cartilaginous fishes including the sharks, rays,<span>skates and chimeras. The Osteichthyes are the bony fish. Both of these groups </span>became established during the Devonian Period about 400 million years ago. The Chondrichthyes <span>differ from the Osteichthyes in many respects, including their</span><span>
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Answer:
1. Nucleoid
2. Plasmid
Explanation:
Prokaryotes are groups of organisms characterized by the lack of a membrane-bound nucleus in their cell. Due to this, the genetic material (DNA) of prokaryotes are found naked i.e. not housed. The DNA of a prokaryote is arranged in a single coiled chromosome located in a region of the cell called NUCLEOID.
However, some prokaryotes e.g. bacteria carry genes on extrachromosomal pieces of circular DNA called PLASMID. Plasmids carry certain genes like antibiotic resistance genes.
Answer:
Tell Molly that the bleeding will stop because hemostasis is the way the body stops blood loss when something happens to a vessel. This is the process of the blood clotting. If we didn't have hemostasis bleeding would continue. Unless she has hemophilia, the blood will stop. The first thing that happens is vascular constriction, then formations of platelet plugs, then the blood clots (coagulation) last the fibrous tissue grows (Fibrosis and fibrinolysis)
Explanation:
The burning of fossil fuels can cause smog and acid rain.
