D. a protective membrane, because they surround<span> the cell
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How are new alleles created? Occasionally, DNA mutations occur in germ cells – cells destined to become eggs or sperm. In this case, the DNA mutation is copied into every new cell of the growing embryo following fertilisation. ... If the mutation affects a gene, it will result in a new version of that gene – a new allele.
Reviewing of articles summarizes the current state of understanding on a topic within a certain discipline.
<h3>What is an article review?</h3>
This is a type of professional paper writing which demands a high level of in-depth analysis and a well-structured presentation of arguments and a critical evaluation of literature in a particular field through summary, classification, analysis, and comparison.
<h3>Introducing the main idea of an article:</h3>
The first sentence should explain the subject being discussed in the passage.
A signal phrase is a short introductory phrase that indicates that a quote or paraphrase is coming. To introduce a signal phrase, you provide an effective transition between your own ideas and the evidence used to explore your ideas.
To include a quote, use the author's last name and the page number from which the quotation or paraphrase is taken.
To include a sentence which discusses the quote chosen, you:
- Use a full sentence followed by a colon to introduce a quotation.
- Begin a sentence with your own words, then complete it with quoted words.
- Use an introductory phrase naming the source, followed by a comma to quote a critic or researcher.
Hence, a review article is generally considered a secondary source since it may analyze and discuss the method and conclusions in previously published studies.
Read more about the <em>article review</em> here:
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Answer:
Guard cells use osmotic pressure to open and close stomata, allowing plants to regulate the amount of water and solutes within them. In order for plants to produce energy and maintain cellular function, their cells undergo the highly intricate process of photosynthesis
Explanation: