I believe the type of nutrition that is believed to have come first is Heterotrophic mode of nutrition. Heterotrophic mode of nutrition is a type of nutrition in which animals or organisms depend upon other organisms to survive. All animals and non green plants are heterotrophic organisms. These organisms have to acquire and take in all the organic substances they need for their survival.
The movement of food through the esophagus is called peristalsis.
<h3>What is the buccal cavity?</h3>
The mouth is what we generally call the buccal cavity. It is an opening that contains the teeth and the tongue. The tongue plays the important role of serving as the organ of taste while the teeth serves to marsh food. It is the white strong structure that occurs in the mouth that enables is to masticate our food. Also in the mouth we have the salivary gland which plays the role of secreting the saliva and we know that the saliva contains from enzymes that makes it possible for the digestion of food to commence at the moth. It the follows that the buccal cavity is made up of the teeth, tongue and salivary glands.
Food moves into the stomach via the esophagus. Thus movement is slow and is aided by the muscles that line the gastro intestinal tract. As such, movement of food through the esophagus is called peristalsis.
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Carbon dioxide is generated in tissues as a byproduct of normal metabolism. It dissolves in blood plasma to form carbonic acid (H2CO3); red blood cell (RBC) carbonic anhydrase catalyzes this reaction. Carbonic acid then spontaneously dissociates to form bicarbonate (HCO3−) and a hydrogen ion (H+). In response to the decrease in intracellular <span>pCO2</span>, more CO2 passively diffuses into the cell.
Cell membranes are generally impermeable to charged ions (i.e. H+, HCO3− ) but RBCs are able to exchange bicarbonate for chloride using the anion exchanger protein Band 3. Thus, the rise in intracellular bicarbonate leads to bicarbonate export and chloride intake. The term "chloride shift" refers to this exchange. Consequently, chloride concentration is lower in systemic venous blood than in systemic arterial blood: high venous pCO2 leads to bicarbonate production in RBCs, which then leaves the RBC in exchange for chloride coming in.<span>[2]</span>
Answer:
It allows us to be educated in issues important in today's world.
Explanation:
Nowadays, the world is facing many different issues. Among them, the climatic issue is the most important one. Science allows us to study global warming. It will enable us to understand how global warming is increasing and how it is affecting the climate. It allows us to get a prediction about climate change, which might be happened by global warming. By studying science, we can also be able to know what to do to reduce global warming so that our environment can become safe.
So we can say that science allows us to be educated in those issues which are important in today's world.
Answer:
a) decreased soil nitrogen due to the harvesting of crops
Explanation:
I looked at my notes and made a 100 on the quiz.
