Answer:
Answer is A, the slowed activity of the nasal cilia.
Explanation:
The nasal cilia are hair-like structure or projection. which are found in the mucus membrane. The germ , dust or particles that could cause irritation to the lung, are captured by the mucus. This mucus are moved away from the lung by the nasal cilia, either through the nose or swallow.
They can also be found at the air passage , moving mucus out of the lung.
In the case of the little girl, the girl experienced a running nose due to the slow activity of the nasal cilia, this is because of the col temperature.
It doesnt show anything but the question??
Answer: Gene Pool
Explanation:
Gene pool is the collection of all the gene and various allelic form of those gene within a population.
Variation naturally occurs among the gene of members of the same species that interbreed.
Gene pool It is therefore the total number of gene of all the members among the population of a particular species. Gene pool is used to determine the level of mutation, variation, genetic diversity among members of a population.
The medial pathway, which controls gross movements of the head, trunk, and limbs, consists of tectospinal, reticulospinal and vestibulospinal tracts.
The tectospinal tract in humans, also known as colliculospinal tract, is a nerve tract that coordinates head and eye movements. This tract is a part of the extrapyrimidal system in which it particularly connects the midbrain tectim and cervical regions of the spinal cord.
The vestibulospinal tract is a neural tract found in the central nervous system. It is specifically also a component of the extrapyramidal system and is a classified component of the medial pathway. The vestibulospinal fibers of the tract relay information from the nuclei to the motor neurons which is the same with the other descending motor pathways.
Lastly, the reticulospinal tracts or the descending or anterior reticulospinal tracts are extrapyrimidal motor tracts that goes down from the reticular formation in two tracts to act on the motor neurons supplying the trunk and the flexors and extensors of the proximal limb.
