The nervous and endocrine systems both send signals through the body. One difference is a
Endocrine system signals travel faster
b
Endocrine system relies on the bloodstream
c
Endocrine system signals travel faster
d
Nervous system develops later in childhood

answer : haversian

[explanation: -(compact bone is organized as parallel columns, known as haversian systems, which run lengthwise down the axis of long bones. these columns are composed of lamellae, concentric rings of bone, surrounding a central channel, or haversian canal, that contains the nerves, blood vessels, and lymphatic system of the bone)]

the answer is c.mitochondria. glad to .

the answer is sex-linked recessive.