Maturation, which is the biological unfolding of growth, does not play a key role in cognition. (points : 1) true false

i'd say that the moon rock is about 2.2 billion years old.

the median of the data is 4.5.

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)]

answer: dna

because all cells have genes