Studies of populations that reveal correlations between dietary habits and disease incidence are epidemiological studies.
Answer:
erosion and a, weatheri g and b
That property is called h<span>ydrogen bonding. </span>
Answer:
The cell wall sends signals for the cell to enter the cell cycle in order to divine and grow
Explanation:
The cell wall is porous allowing some substances, including proteins, to pass into the cell while keeping other substances out
The composition of the hair shaft onto which shampoos and conditioners are applied are; keratin, water, lipids, minerals, and pigments (melanin).
The hair shaft is a part of the hair that is situated above the skin. The hair shaft is mostly composed of keratin with water, lipids, minerals and pigments (melanin). The hair shaft contains three layers which are; the cuticle (the thin outer part of the hair shaft), the cortex (the middle part of the hair shaft which is responsible for the texture, strength, and colour of the hair), and the medulla (the deepest part of the hair shaft). The cuticle is the first layer of the hair shaft to be damaged when hair is not treated properly through the use of insufficient shampoo, conditioner, or brushing.
