Nucleotides are linked together by the formation of a phosphodiester bond
Its not herbivore or producer which means its either carnivore or decomposer. but i would more likely go with decomposer
Environmental sustainability is the rates of renewable resource harvest, pollution creation, and non-renewable resource depletion that can be continued indefinitely. If they cannot be continued indefinitely then they are not sustainable.
Stem cell research can help us understand how disease occur, as well as help scientists find out what drugs can be effective to fight diseases.
Some drawbacks include adults don't have many stem cells and actually in fact, stem cell research costs a lot of money (well in the U.S. it does..)
~Sanjith U.