that is has a nucleus and also a cell wall
Parietal cells produce gastric acid (hydrochloric acid) in response to histamine (via H2 receptors), acetylcholine (M3 receptors) and gastrin (gastrin receptors). Parietal cells contain an extensive secretory network (called canaliculi) from which the HCl is secreted by active transport into the stomach.
Conclusion is the step of the scientific method explains why the results turned out the way it did.
<h3>What are the steps of scientific method?</h3>
There are seven steps of the scientific method which are the following:
1. Ask a question: The first step in the scientific method is asking a question that you want to answer.
2. Perform a research about the given topic.
3. Make your hypothesis. Hypothesis is a statement which may be true or false.
4. Test your hypothesis by conducting an experiment or a series of experiments.
5. Make an observation.
6. Do analysis about the results and draw a conclusion on the basis of given data.
7. Present the findings to the world.
So we can conclude that Conclusion is the step of the scientific method explains why the results turned out the way it did.
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One reason biodiversity is such an important aspect of sustainability is that it provides vital ecosystem services through the interactions among species and keeps any population from growing too large (option A).
<h3>What is biodiversity?</h3>
Biodiversity refers to the number and variety of species of plant and animal life within a region.
Sustainability is the means of configuring civilization and human activity so that society, its members and its economies are able to meet their needs and express their greatest potential in the present without compromising the ability of future generations to do the same.
Biodiversity helps to ensure sustainability because it provides vital ecosystem services through the interactions among species and keeps any population from growing too large.
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