white blood cells
Circulatory system
The body's internal environment is maintained distinct from the external environment by the presence of semi-permeable cell membranes that selectively allow substances to enter or leave cells, and by homeostatic mechanisms that regulate internal conditions such as temperature, pH, and nutrient levels. Specialized organs like the liver, kidneys, and lungs also play a crucial role in filtering and maintaining the internal environment.
The skin is the body's largest sensory organ. It protects the body from external elements and helps detect sensations such as touch, temperature, and pain.
The body's internal defenses include the immune system, which comprises various cells and proteins that work together to identify and eliminate pathogens like bacteria and viruses. Key components include white blood cells, antibodies, and the complement system, which help detect and destroy invaders. Additionally, the body has mechanisms such as inflammation and fever that enhance the immune response. Together, these defenses maintain health and protect against infections.
This process is known as cellular respiration, where cells break down nutrients like glucose to produce energy in the form of ATP. This energy is used by cells to carry out their various functions in the body.
protectors
it is the esopheguess
The skin,
Yes, ants can sense vibrations through specialized cells located on their bodies. This ability helps them communicate with each other, locate food sources, and detect potential threats in their environment.
Pathogens
Circulatory system
yes
blood.
germs and infections that enter our bodys
White blood cells
germs and infections that enter our bodys
The body's internal environment is maintained distinct from the external environment by the presence of semi-permeable cell membranes that selectively allow substances to enter or leave cells, and by homeostatic mechanisms that regulate internal conditions such as temperature, pH, and nutrient levels. Specialized organs like the liver, kidneys, and lungs also play a crucial role in filtering and maintaining the internal environment.