Answer:
The cuticle is the hair's protective layer, the cortex forms the pigment of the hair, the health of the cortex depends on the cuticle protecting it while the medulla is the innermost of the hair.
Explanation:
The cuticle is the hair outermost layer, the cortex is the middle structure for strength while medulla is the inner most.
Respiration is a process that involves the exchange of
oxygen (O2) and carbon dioxide (CO2) in the lungs between the atmosphere and
pulmonary circulation.Thus, cellular respiration is a process where glucose is converted
into energy in the presence of oxygen while pulmonary respiration occur during
inspiration, it is a process whereby oxygen and carbon dioxide enter and leaves
alveoli simultaneously.
Common zinnias. Very pretty plants
<span>bacteria that require a constant supply of oxygen in order to survive are called
</span><span>Obligate aerobes
</span>because these need oxygen to grow and for their all necessary processes
The option B cannot be correct because they dont need oxygen while C are those that can also live without oxygen
so option A is correct
hope it helps
