The salmon is a key player in the food web whose removal may cause an imbalance in the whole ecosystem.
<h3>What is a food web?</h3>
A food web is a graphical diagram representing all connections between organisms in a given ecosystem.
Salmon represent the food for different types of animals in a food web, thereby their removal may cause serious harm to the balance of the ecosystem.
Salmon fish is a tertiary consumer because they eat herring which in turn eat zooplankton that eats phytoplankton.
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Answer:
Sigma factor is the name of the protein and it helps RNA polymerase to recognize promoter.
Explanation:
RNA polymerase is the enzyme which helps in the transcription of DNA duplex. In bacteria, a protein called sigma factor is present in RNA polymerase which is responsible for the initiation of transcription.
The sigma factors gives the ability to RNA polymerase to recognize the promoter sequence. If the sigma factor is not present in RNA polymerase than this enzyme can not distinguish between promotor and other sequences.
So the sigma factor increases the affinity of RNA polymerase towards promoter and helps in initiation of the transcription. Sigma factor gets released from the core enzyme when the chain reaches 8-9 bases.
Because pioneer species are the first to return after a disturbance, they are the first stage of succession, and their presence increases the diversity in a region. They are usually a hardy plant, algae or moss that can withstand a hostile environment.
Due to their function, nerve fibers which carry afferent impulses are known as afferent nerves or sensory nerves, and those nerve fibers which carry efferent impulses are known as efferent nerves or motor nerves.
The measurements that are normal for a client is a blood pressure of 108/80, a pulse of 112 beats per minute and respiratory rate of 15 breaths per minute. Option C
<h3>What is the normal blood pressure?</h3>
The blood pressure refers to the rate at which the heart pumps blood to the other parts of the body. The blood pressure would rise if the blood vessels are blocked and the heart would have to do more work to pump blood.
The measurements that are normal for a client is a blood pressure of 108/80, a pulse of 112 beats per minute and respiratory rate of 15 breaths per minute.
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