Answer:
The polar bear is an animal which is prevalent in the arctic region of the world which is characterized by very cold icy climate.
They adapt to these climatic conditions by maintaining a body temperature of 37°C through its thick fur and tough skin. It also has an insulating fat layer (adipose tissues) which is very thick.
This insulation helps in keeping the animal very warm in extreme temperatures.
Invasion and multiplication of pathogenic microorganisms<span> in the body is called an infection. When we are infected by </span>pathogens<span> we become sick, which means that our bodies stop functioning properly. Infectious agents, such as </span>bacteria<span>, a virus, fungi or protozoa cause communicable diseases.</span>
Answer: High Frequency waves by method of compression bone conduction
Explanation: in this, vibration of the bones of the skull and sometimes, arguably soft tissues leads to the production of sounds. The outer and middle ear is bypassed in this method of sound production. Sound reaches the inner ear directly and its a process largely involved in designing hearing aids.
Answer:
Body temperature
Explanation:
We use body temperature as homeostasis parameter in the lab.
Homeostasis can be described as a self regulating mechanism used by the body systems for stability maintainable so as to adjust to several conditions that are important for survival.
The way the body controls the body temperature in humans is a good description of homeostasis