Immune System
smooth muscle
A rock is a complex mixture of compounds, not a pure substance.
The medulla oblongata, specifically the pre-Botzinger complex, is responsible for the secondary control of respiration. This area helps regulate the rhythm and depth of breathing in response to changes in oxygen and carbon dioxide levels in the blood.
an element
Major histocompatibility complex proteins that protect cells from invasion
A signal to which an organism responds is called a stimulus. It can be any environmental change or cue that triggers a response or behavior in an organism. This response can range from simple reactions like moving away from a harmful substance to complex behaviors like mating rituals in animals.
complex reaction time is a stimulus response
Genes within the Major Histocompatibility Complex (MHC) region, such as HLA genes in humans, code for self proteins responsible for presenting antigens to the immune system. These proteins play a crucial role in distinguishing between self and non-self cells and are essential for immune response regulation and self-tolerance.
If a substance didn't turn blue or black with iodine, it means that it didn't form any complex with iodine. When iodine forms a complex with the substance, the complex is generally blue in color.
by producing an immune response
a complex and usually unpleasant emotional response to isolation.
This is the atom of a chemical element (of course by chemical methods).