The answer is c or a its one of the two
Pyruvate undergoes fermentation if no oxygen is present. This is called anaerobic reaction. Can undergo lactic acid or alcoholic fermentation.
Answer:
inherited traits are controlled by genes and the complete set of genes within an organism's genome is called its phenotype. The complete set of observable traits of the structure and behavior of an organism is called its phenotype. These traits arise from the interaction of its phenotype with the environment.
This decrease of pressure in the thoracic cavity relative to the environment makes the cavity pressure less than the atmospheric pressure. This pressure gradient between the atmosphere and the thoracic cavity allows air to rush into the lungs; inhalation occurs. The resulting increase in volume is largely attributed to an increase in alveolar space because the bronchioles and bronchi are stiff structures that do not change in size.
The nervous system in a frog controls the activities of the organs of the body. It also would regulate the internal environment in one's body. All the organs which are also the same parts of nervous system of a vertebrate are present in a frog. The brain,spinal chord,the sympathetic and para sympathetic nerves,cranial nerves,spinal nerves,cranial nuclei and ganglia.
