Answer:
The correct option is <em>D. It dominates the phenotype.</em>
Explanation:
A dominant allele can be described as the allele which suppresses the effect of a recessive allele. A recessive allele can be described as the allele which gets masked by the dominant allele.
If the gene for a particular trait in an organism is heterozygous, then the organism will show the physical characteristic of the dominant trait. The recessive trait becomes suppressed and might be visible in the next generation if possible.
Answer:
Greater than the pressure in the atmosphere.
Explanation:
Air moves from the region of higher pressure to that of its lower pressure. To move the air out of the lungs during exhalation, the intrapulmonary pressure (pressure inside the lungs) is increased above the atmospheric pressure. This is achieved by relaxation of the diaphragm and the external intercostal muscles relax. The chest and lungs recoil and the alveolar pressure inside the lungs increases above atmospheric pressure. This pressure gradient allows the air to move outside the lungs during exhalation.
It is important to determine or know whether an organism is aerobic or anaerobic because from there you would be able to know the perfect conditions for the organism to grow and reproduce. If you are culturing the organism you would need if it needs oxygen and how much of oxygen is needed. Anaerobic organisms does not need the presence of oxygen in order to grow. You can determine an organism that is anaerobic by trying to put them in conditions that dos not have oxygen. After a few hours or days, when you observe that more organisms are present, then most likely it is an anaerobic organism.<span />
