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.
<span> D.They reproduce sexually and have many traits that are easy to observe.
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If a population of rabbits is introduced to a population of dandelions the rabbits will end up eating all the dandelions
The vinegar removed only the shell of the egg because it was acidic. But it was unable to mess with the egg, because as it removed the shell of the egg, it was unable to get past the sac, the part that protects the inner egg. It is hard to puncture this sac, unless dropped or punctured by a nail or something hard.
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I found this radiography online, i hope it's the same:
1- <span>Spinous process
2- Atlas ( it's the first vertebra)
3- Axis </span><span>( it's the second vertebra)
4- Transverse process
5- </span><span><span>Intervertebral disc</span> (present between vertebras)
6- body of the vertebra
the occipital bone is a reference that it's the posterior side, while the mandibule indicates it's anterior.
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