Proteins are made out of . What determines the primary structure of a protein?
State two functions of proteins.
What are enzymes?
Describe the role of hemoglobin.

proteins are made of amino acids  

The primary structure of a protein refers to the sequence of amino acids in the polypeptide chain. ... The primary structure of a protein is determined by the gene corresponding to the protein. A specific sequence of nucleotides in DNA is transcribed into mRNA, which is read by the ribosome in a process called translation

causes Biochemical Reactions,Transports and Stores Nutrients

Hemoglobin is a protein that is used to carry oxygen through the bloodstream from the lungs to the tissues. This is important for survival. Hemoglobin has a lower affinity for oxygen the lower the concentration of oxygen gets. This has great implications for the human body and has helped us adapt very effectively. :-)

primary succession occurs in essentially lifeless areas regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. secondary succession occurs

well for one plants are always the producer, so a is the answer. a wolf is more of the consumer(predator) and the deer is the prey so i know those two are out of the question. also mushrooms are fungi/fungus so a is the producer.