Explanation

 Ligaments are tough, fibrous bands of connective tissue that connect bone to bone, primarily around joints, helping to stabilize them and limit excessive movement. 

Explanation

Eugenics is the science of improving the human species by breeding out disease and disabilities, aiming to enhance the genetic quality of the human population.

This concept has been widely criticized and discredited due to its association with unethical practices, such as forced sterilization and discrimination.

Explanation

The phenotype refers to the observable physical characteristics or traits of an organism, such as:

• height
• eye color
• skin texture.
  

Explanation

Gnawing is a characteristic behavior of rodents,

It is the use of their sharp, continuously growing incisors to gnaw or chew on various materials.

This behavior helps them manage the growth of their teeth and obtain food.

Explanation

Hydrogen peroxide (H₂O₂) is commonly used as a disinfectant to kill bacteria, viruses, and fungi on surfaces.

It works by releasing oxygen when it comes into contact with the surface, which helps to destroy pathogens.

Additional information:

 While other substances like vinegar and lemon juice have some antimicrobial properties,

hydrogen peroxide is more effective as a disinfectant.

Explanation

a person having a heart br most likely feels pain In Chest

Most heart attacks involve discomfort in the center or left side of the chest that lasts for more than a few minutes 

The discomfort can feel like uncomfortable pressure, squeezing, fullness, or pain.

Explanation

Demography is the statistical study of human populations.

Demography means مردم شماری کا علم

Explanation

A bee is a flying insect known for pollination and producing honey.

It belongs to the order Hymenoptera, which also includes wasps and ants.

Explanation

Epidemiology, the study of epidemics, is sometimes defined as the medical aspect of ecology, for it is the study of diseases in animal populations. 

Explanation

A wave of electrochemical change that travels along the length of a neuron, from one end to the other, is called a nerve impulse.