Nails are made of iron because, iron is strong and sturdy; although nail rust when it undergoes oxidation when expose to water but it is not explosive.
Barium and phosphorus are not suitable for nail making because of their properties.
Barium is an element which reacts with virtually all non metals, forming poisonous products which are dangerous to health and to the environment. It also reacts explosively with water.
Phosphorus is not found in its pure form in nature, it conducts electricity and it is combustible in nature.<span />
Answer:
The correct answer is option B) "demonstrate with a think-aloud".
Explanation:
Think-aloud literally means to say one thoughts, expecting to other people would hear them. The strategy of describing the thoughts is very helpful for a teacher to achieve that his students internalize the information that is being given. If the teacher uses this approach, the student could see the teacher's perspective and would know what the teacher is thinking when he is using text factors. In consequence, the next time the student tries to use text factors she or he would know for certain what is the teacher approach.
The DNA formed by biochemical compounds (nucleotides) is organized in chromosomes, in all eukaryotic cells chromosomes are linear.
<h2>What is DNA?</h2>
DNA is the deoxyribonucleic acid responsible for containing the instructions that determine all the characteristics and functions of an organism.
<h3>Characteristics of DNA in eukaryotic cells</h3>
- Each DNA molecule is made up of two chains made up of a large number of biochemical compounds called nucleotides.
- Each nucleotide, in turn, is made up of a sugar (deoxyribose), a phosphate group, and a nitrogenous base.
- DNA takes the form of a double helix, where the sides are chains of sugars and phosphates connected by "rungs," which are the nitrogenous bases.
Therefore, we can conclude that in eukaryotic cells, the DNA is found in the nucleus, where the chromosomes reside, and in all eukaryotic cells the chromosomes are linear.
Learn more about DNA in eukaryotic cells here: brainly.com/question/7153285
Alleles. Alleles are the "same" genes, but provide a variation of the intended function.