The given question is incorrect. The correct question is:
Question: When the diaphragm contracts, _______.
A) it lifts the rib cage
B) it rises in the thoracic cavity
C) it flattens out
D) it flattens out and it rises in the thoracic cavity
Answer:
C) it flattens out
Explanation:
The diaphragm is a muscular dome-shaped structure. It contracts and relaxes during inhalation and exhalation respectively. During normal and quiet inhalation, the diaphragm and external intercostal muscles contract. The contraction of the diaphragm makes it flat to increase the volume of the thoracic cavity. This allows the lungs to expand and the pulmonary air pressure is reduced. The atmospheric air moves into the lungs.
Answer:
The organisms are protists
The proportion of the two phenotypes when the F1 generation group from 10 100 offspring will remain the same.
Explanation:
The proportion of the phenotypes will remain the same as it could be calculated through Punnett square. Organism physical appearance depends upon their parent organism. The transfer of DNA from one generation to another generation plays an important role in the transfer of trade from one to another generation.
In the cell division time, the chromosomes get doubled and divided equally into the new daughter cells. These daughter cells grow up and shows the phenotype characters which is relevant to their parent’s cell.
Answer:
Bacteria are examples of the prokaryotic cell type. ... In general, prokaryotic cells are those that do not have a membrane-bound nucleus. In fact "pro-karyotic" is Greek for "before nucleus". Besides bacteria, the cyanobacteria (blue-green algae) are a major group of prokaryotes.