Answer:
New cells take the place of old or damaged cells as they die. Cancer disrupts this process and leads to abnormal growth in cells. It's caused by changes or mutations in DNA. DNA exists in the individual genes of every cell.
Explanation:
Barrier island refers to the off shore deposit of sands and sediments which runs parallel to the coast line. Off shore is the first line of defense against storm wind and waves, thus they must be protected.
Communities that are far from the barrier island will be committed to preserving it if the following information are given to them: barrier islands have very high beneficial impacts on distant communities, this is because wet land will not exist without the contribution of barrier island which keep the coast away.
Answer:
A. 
Explanation:
* <em>Kelvin</em> and <em>Celsius</em> are alot similar in meaning.
I am joyous to assist you anytime.
Answer:
4x + 6y = 420
Explanation:
since x is number of child tickets and y is adult tickets, and $4 is the cost of child tickets and $6 is the cost of adult tickets, that eliminates A and D.
The question also states "for one day", so that elimates C, which C is the equation for two days.
This leaves 4x + 6y = 420
Answer:c. Steroids/cholesterols and phospholipids
Explanation:
The cell membrane structure exhibit a fluid mosaic model due to the presence of two types of membrane lipids these are phospholipids and sterols like steroids/cholesterols.
A phospholipid is a kind of lipid that is made up of glycerol, two fatty acids in tail and a head group associated with the head group. The biological membrane forms two layers of phospholipids with their tails that points inwards and the arrangement is called as the phospholipid bilayer.
The cholesterol is the another membrane lipid in the cell membrane. It is composed of fused carbon rings present along the side of phospholipids.
