Proteins are made up of smaller units called amino acids.There are twenty different amino acids which are joined together in different pattern to form proteins. Further the folding of polypeptide chain give rise to different shapes and structure of proteins.
Nucleic acids are made up of one kind of monomers call nucleotides. These nucleotides are attached with each other in the form of double strand (DNA) or in single strand form (RNA).
They use their skin to do gas exchange
capillaries is the answer
In simpler terms, the Big Bang theory says the universe as we know it started with a small singularity, then inflated over the next 13.8 billion years to the cosmos that we know today. In the first second after the universe began, the surrounding temperature was about 10 billion degrees Fahrenheit (5.5 billion Celsius). The cosmos contained a vast array of fundamental particles such as neutrons, electrons and protons. These decayed or combined as the universe got cooler. Over time, however, the free electrons met up with nuclei and created neutral atoms. This allowed light to shine through about 380,000 years after the Big Bang.
Answer: As water is cooled, its density increases until it reaches about 4˚ Celsius.
hope this helps you :D
i apologize if i got it wrong
