Answer:
Circulatory system remove waste from the cell and provide clean blood to the cell.
Explanation:
During cellular respiration, lungs inhale oxygen which stored in the alveoli. The red blood cells contains hemoglobin that carries deoxygenated blood containing carbondioxide from the cell in the veins to the heart and unload this carbondioxide gas in the alveoli of the lungs and load oxygenated blood having oxygen from the alveoli through capillaries in order to provide oxygen to the cells that is necessary for the survival of humans. Platelets are the type of cells that helps in blood clotting whereas white blood cells provides immunity against pathogens.
Answer:
Loss of cell wall integrity or
Explanation:
Grams staining i a staining method used to classify bacteria into two main classes. Gram positive and Gram negative.
They are differentiated according to the ability of their cell wall to retain the primary stain color of the crystal violet stain or the counter stain pink.
Bacillus subtilis is a Gram positive bacteria hence it is supposed to stain purple.
Therefore, when it stained pink is an error. it shows loss of the cell wall integrity due to old age, overdecolorization or over fixing with heat.
The answer is Topoisomerase.
<span>Topoisomerase is an enzyme with the role to regulate the overtwisting or </span>undertwisting<span> of DNA helix. If DNA helix is untwisted, topoisomerases will regulate this situation and will twist DNA helix.</span>
Nuclease<span> is an enzyme that cleaves the sequences of nucleic acids into smaller units.</span>
<span>Telomerase is an enzyme that adds specific sequence to the telomere ends.</span>
This is truuuuuuuuuuuue because relatives before you could have possibly been less immune to the cold virus or other viruses which could be why you are more prone to sickness more
