Examlex
Which of the following always has a "pyramidal" shape (i.e., decreasing values at higher trophic levels) ?
Erythrocyte
Erythrocytes, or red blood cells, are the most abundant type of blood cell, primarily responsible for carrying oxygen from the lungs to the body's tissues and bringing carbon dioxide back to the lungs for expulsion.
Neutrophil
Neutrophils are a type of white blood cell that play a critical role in the body's defense against infection by engulfing and digesting pathogens.
Eosinophil
A type of white blood cell part of the immune system, known for its role in fighting infections and its involvement in allergic reactions.
Lymphocyte
A kind of leukocyte that plays a role in the immune response, defending the body from infectious diseases and alien intruders.
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