Answer:
Cardiovascular is the correct option
The B-pleated sheet is held together by hydrogen bonds between adjacent segments.
In an a-helix the side chains are located on the outside of the helix
The secondary level of protein structure refers to the spatial arrangements of short segments of the protein
I. Each carbon atom can form single bonds with up to four other carbon atoms. II. Each carbon atom can form double bonds with up to two other carbon atoms. III. Carbon atoms can join together to form chains or rings. IV. A single molecule of some compounds can contain thousands of carbon atoms.
Answer:
All the given choices
Explanation:
Carbon is a very interesting element which is the backbone of most organic compounds.
Organic compounds are made up of carbon. Carbon forms a wide range of compound due to the following properties;
- An atom of carbon has 4 valence electrons and can bond with 4 other carbon.
- Carbon can form single, double and triple covalent bonds.
- They can join together to form rings or chains.
Answer:
Pretty sure it's A because people can redo this test as many times as needed to verify the answer.
