Answer:
Hair cells are present inside the inner ear that acts as a receptor of sound. Researchers affirmed that once there is a damage to the hair cell, it can regenerate in birds.
Damage hair cell can lead to loud noise which in turn affect the ear. The supporting cells are present along with the hair cells. When the hair cells get damaged, the supporting hair cell gets the signal to start the process of regeneration.
Answer:
B. to determine if one trait could affect the inheritance of another trait
Explanation:
a p 3 x learning
Ans.
Tuberculosis (TB) is a bacterial infection that affects mainly respiratory tract and can be transmitted from one to another person through contaminated air. The causative agent of tuberculosis, <em>Mycobacterium tuberculosis</em> has developed resistance against many antibiotics, such as rifampin and isoniazid, which is known as tuberculosis drug resistance.
If a person infected with TB shows drug resistance against some TB drugs, 'doctors should give other TB drugs to that person, even if these drugs show less effect than common drugs'. This is because these drugs can prevent or kill the bacterium more effectively than the common drugs for which, bacterium is resistance.
An example of Habitat Fermentation is building several roads through wetlands.
Answer: Option A
<u>Explanation:</u>
Habitat Fermentation is defined as the process by which huge natural habitat will gets divided into many isolated and smaller patches of habitat which can result and affect many living organism.
They are mainly caused due to direct human activities such as urbanization and construction of road and railways tracks in natural habitats. Thus we can conclude that one of the best example for Habitat Fermentation.
Answer: D. About half of the offspring will have purple flowers, and about half of the offspring will
have white flowers,
Explanation: Purple flower is dominant over white flower, therefore a cross between Pw and ww will produce four offsprings, fifty percent of which will have purple flowers and the other fifty percent will have white flowers. The genotypes of the offsprings are Pw and ww. Pw will manifest outwardly as purple flowers while ww will manifest outwardly as white flowers.
See attached completed punnett square
