Answer:
True
Explanation:
A DNA molecule is composed of the nitrogenous bases stacked inside the two backbones made up of the phosphate and sugar molecules. The nitrogenous bases form the nucleotide which when read in the triplets called codons code for specific amino acid and then form proteins.
If we say that we have to protect the DNA than it means that we have to conserve the DNA molecule. Conserving the DNA molecule means that the sequence of nucleotide which codes for specific proteins must be conserved as it is the protein molecule that is essential for survival.
Thus, true is correct.
fats, oils, waxes made of C,H,O
EX: triglycerides, phospholipids, steroids, waxes <span>uses: long term energy storage </span>
structure of cell membrane
insulation
protects organs
more efficient energy storage than carbohydrates
<span>lipids are </span>non-polar
Monosaccharides -Simple sugars
<span>The relative age of a rock layer is the age of the rock compared to the ages of the rock layer while the actual age of the rock layer is the actual number of years that the rock was formed. The relative age of a rock is generally determined by geologists using the Law of Superposition where the youngest rock is at the top and the oldest rock is at the bottom of the horizontal layer. The actual age of a rock is generally determined using Radiometric Age Dating method that is based on the natural radioactive decay of rock elements.</span>