Answer:In DNA and protein hydrogen, sulphur, oxygen and selenium are some elements which found in DNA and protein.
Explanation:
This elements are helps in preparing of amino acid.
Answer:
the classmate is correct
Explanation:
they are luckier than most. for example
take a brown beetle in a green forest
and there will be some few green beetles, which is the artificial selection
those green beetles will survive better than the brown ones and this they have better traits. and the green beeetles will make up most of the population of beetle after a while. this is becuase the brown beetles need to evolve over time to the environment which will take a long time.
Answer:
The correct answer will be- the cell structures undergo repeated breakdown and formation.
Explanation:
The carbohydrates, fatty acids and amino acids are the three important bio-molecules which form the components of various cellular structures.
In the given question, the cell biologist radiolabeled these biomolecules and then observed the cellular structures after cell metabolism. He found that few cellular structures contained radiolabeled structures and few not. This showed that the cellular structures constantly undergo changes in their structures due to cellular metabolic reactions and are broken down and reformed.
Thus, the cell structures undergo repeated breakdown and formation is the correct answer.
I'd say thermal energy. I say that because if I remember correctly the Second law of thermodynamics describes the energy in this case the boiling water (heat) to areas that are not hot like the ice cube. With heat energy we deal with warm moving to the an area of cold. The molecules in the ice cube from what I remember in college aren't moving at all hence the block of ice but when heat is added to the ice cube then the molecules in the ice cube start moving and getting excited, which causes the ice cube to start melting, as my bio teacher in college said.
Hopefully this helped and good luck.