Phosphate Backbone is teh dna sugar phosphate bases connect with each other.
Mutualism. e.g. oxpecker and zebra
commensalism. e.g. remora fish and sharks
parasitism. e.g. tapeworms and cow
Answer:
Toothpaste
Explanation:
Toothpaste commonly uses minerals like calcium and fluoride, hope this helps :)
The number of workers for each person receiving Social Security benefits is called the DEPENDENCY RATIO. An increase in the dependency ratio increases the burden on the productive part of the population and has a direct direct impact on financial expenditures on things like <span>social security.</span>
