Answer:The immune system is a complex network of cells and proteins that defends the body against infection.
The immune system keeps a record of every germ (microbe) it has ever defeated so it can recognise and destroy the microbe quickly if it enters the body again.
Abnormalities of the immune system can lead to allergic diseases, immunodeficiencies and autoimmune disorders.
Explanation:
Answer:
yes it does
here is a more clearer explanation
Explanation:
The specific heat capacity of water is 4,200 Joules per kilogram per degree Celsius (J/kg°C). This means that it takes 4,200 J to raise the temperature of 1 kg of water by 1°C.
Some other examples of specific heat capacities are:
Material Specific heat capacity (J/kg/°C)
Brick 840
Copper 385
Lead 129
Lead will warm up and cool down fastest because it doesn’t take much energy to change its temperature. Brick will take much longer to heat up and cool down. This is why bricks are sometimes used in storage heaters as they stay warm for a long time. Most heaters are filled with oil (1,800 J/kg°C) or water (4,200 J/kg°C) as these emit a lot of energy as they cool down and, therefore, stay warm for a long time.
The specific heat capacity of a material is the energy required to raise one kilogram (kg) of the material by one degree Celsius (°C).
An antigen causes the body to make antibodies.
Answer:
B and D
Explanation:
Organisms such as plants are producers. We know for sure that they all use the energy of sunlight. However, they can use either photosynthesis or chemosynthesis.
