Answer:
I think its 1 cells all come from pre existing cells. have a nice day hope this isnt too late :)
Explanation:
im taking the test too
Answer:
(a) Carbohydrates are the structures which add to the fluidity of the plasma membrane.
Explanation:
The principle components of plasma membrane are lipids, proteins and carbohydrates which are attached to some proteins and lipids. Membrane fluidity means how much viscous is the lipid bilayer of cell membrane? The membrane phospholipids absorbs fatty acids of different lengths and saturation. When there is amore distance between phospholipids fluidity increases.Another one is the temperature and cholesterol. So these are the three factors which affects the fluidity of the membrane. The rate of saturated and unsaturated fatty acids decides the fluidity of the membrane at cold temperatures. Cholesterol take up the tasks as buffer blocking the lower temperatures from fluidity inhibition and blocking higher temperatures from increasing of fluidity.
The answer would be cretinism
Iodine is an element that vital for making thyroid hormone. Deficiency of iodine can cause hypothyroidism which can lead to growth retar..dation of the child inside the mother. This will cause the child develop a disease called cretinism. A child with cretinism will have a disturbance in growth and development.