<span>A low white blood cell count usually is caused by: Viral infections that temporarily disrupt the work of bone marrow. Certain disorders present at birth (congenital) that involve diminished bone marrow function. Cancer (or other diseases that damage bone marrow)</span>
Answer
decomposers end the food chain but technically the food chain never stops
Asexual reproduction that produces a zygote
The focea centralis functions to promote daytime vision, being the site of concentrated photoreceptors called cone cells.