All infectious diseases are caused by bacteria.

Please select the best answer from the choices provided

T
F

F

Explanation: some diseases are becuase your too overweight or FAT like heart diseases

answer: substrate concentration. enzymes work best when there is a high enough substrate concentration for the reaction they catalyse.

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)]