Cells need water and without water they wont function right
These stages are prophase, prometaphase, metaphase, anaphase, and telophase. During mitosis, the chromosomes, which have already duplicated, condense and attach to spindle fibers that pull one copy of each chromosome to opposite sides of the cell.
Answer:
The answer is B. Van der Waals forces are weaker than ionic and covalent bonds.
Explanation:
In general, if we arrange these molecular forces from the <u>strongest to weakest</u>, it would be like this:
<h3>Covalent bonds > Ionic bonds > Hydrogen bonds > Dipole-Dipole Interactions > Van der Waals forces</h3><h3 />
Covalent bonds are known to have the strongest and most stable bonds since they go deep and into the inter-molecular state. A diamond is an example of a compound with this characteristic bond.
Ionic bonds are the next strongest molecular bond following covalent bonds. This is due to the <u>protons and electrons causing an electro-static force</u> which results to the strong bonds. An example would be <em>Sodium Chloride (NaCl)</em>, which when separated is <em>Na⁺</em> and <em>Cl⁻</em>.
Van der Waals forces, also known as Dispersion forces, are the weakest type of molecular bonds. They are only formed through <u>residual molecular attractions when molecules pass by each other.</u> It doesn't even last long due to the <u>uneven electron dispersion</u>. It can be made <u>stronger by adding more electrons in the molecule</u>. This kind of molecular bonds appear in <em>non-polar molecules</em> such as <em>carbon dioxide</em>.
Answer: The steps are made of nitrogenous bases; deoxyribose sugars linked with phosphates.
Explanation: The rungs of the DNA are made of nitogenous bases (The nitrogenous bases are adenine (A), thymine (T), guanine (G) and cytosine (C) ) they are held together by weak hydrogen bonds.
The railings of the DNA are made of deoxyribose sugars which are alternating with phosphates. This part of the molecule is referred to as the "backbone".
Answer:
The diagram below represents some stages in the life cycle of humans. The numbers in the diagram represent various processes in the cycle.