Explanation:
4 dominant allele because all pea plant present in TALL condition , not a recessive allele is presents
It could trigger nuclear fussion
<span>Unidirectional flow in the heart is ensured because the heart contains valves that prevent backflow.
These valves keep the flow of the heart going in one direction (hence the name "unidirectional").</span>
C. Permafrost
Permafrost is the layer beneath the "active layer". The active layer consists of soil that freezes and thaws every year. However, the requirement for permafrost is that it be frozen for two or more years consecutively. This is why permafrost exists in cold environments such as tundras.
Photosynthesis is used by plants for energy. In addition to carbon dioxide and water, light and chlorophyll are required for photosynthesis to work.
