Answer:
amino acids
Explanation:
Proteins ingested in the diet are digested into amino acids or small peptides that can be absorbed by the intestine and transported in the blood.
Answer:
The correct answer is c) action potential
Explanation:
Action potential starts with the opening of the sodium channel in response to the stimulus given to the neuron by neurotransmitter. This opening of sodium ion channel results in the influx of sodium ions in the receptive region of neurons from outside. This is the depolarization step of action potential.
Before this step, the neurons are negatively charged from inside and positively charge outside and this stage it is considered to be resting stage.
As the amount of Na⁺ reaches the threshold value the action potential fires and send the electric signals down to axons.
Therefore action potential occurs because of the influx of Na⁺ ions through chemically gated channels in the receptive region of a neuron.
•a diagram that shows relationships between producers and consumers
The answer is letter A.
Lightning is a contributor of the world's total Atmospheric Nitrogen Fixation, and is important for ogranisms dependent on the nitrogen cycle.
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The answer is letter B. There was a Salmonella outbreak in
the US when some of the patrons in a restaurant in Ohio were infected with
Salmonella Enteritidis on the egg shells of the eggs being used as one of the
ingredients of a home-made mayonnaise. There were 80 people who were infected
with Salmonella from that restaurant.