Answer: double helix
Explanation: The double helix of DNA is, like its name implies, in the shape of a helix which is essentially a three dimensional spiral. The double comes from the fact that the helix is made of two long strands of DNA that are intertwined—sort of like a twisted ladder.
Well collagen is a globular protein with a tertiary structure. when you heat it up the energy will break the bonds that form between the chains of amino acids such as hydrogen and ionic bonds which will cause the shape of the collagen molecule to change and become less ridged and stable and more fluid.
hope that helps
Answer:
yes your answer is correct
Explanation:
this is because the cells that fight against foreign materials are found in the blood
Answer:
Salt in the ocean comes from rocks on land.Oceans water is salty because river flowing into it
Explanation:
The lungs play a main role in carrying out the systems primary function
