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explain effectiveness and efficiency of the specific and non-specific defences.
In specific immune defenses, responses are usually triggered by antigens that are specific to the pathogen. The body's immune system responds to these antigens by producing special proteins called antibodies that attach to...
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Why do animals with millions of cells "need" a circulatory system while animals with few cells can do without one?
Animals which consist of few cells have a capacityto transport the nutrients by cell interactions and diffusion. The maximum distance of the last one is around 0.1 mm. So it...
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The answer needs to be at a grade 11 level need lots of details Q)What influences the food choices people make? Be very specific. Provide details. Elaborate
Food choices people make are influenced by:Biological determinants (hunger, appetite, and taste)Economic determinants (cost, income, availability)Physical determinants (access, education, skills (e.g. cooking) and time).
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Why is it so important for cells to divide?
Cell division refers to the process by which a cell splits into two or more genetically identical daughter cells. The process is important due to the following reasons. To replace...
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why is crossing over and formation of haploid cells in meiosis important in the survival of every species?
The crossing over or recombination of genes which occurs in meiosis rearranges the alleles present in each chromosome of a homologous pair, allowing the mixing of paternal and maternal genes,...
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Why is it important for you to understand transport mechanism in cells and enumerate examples or situations that you encounter in your daily lives.(10 sentences)
The purpose of the transport proteins is to protect the cell's internal environment and to keep its balance of salts, nutrients, and proteins within a range that keeps the cell...
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Watch the following video (up until 21:20) https://youtu.be/311baBOQARQ then answer the following: <h3 class="editor-header">✶ What are 3 important things learned from this lesson?</h3>
Quantum physics governs the universe on the tiniest of scales. At this scale, objects pop in and out of existence, and things over here can affect others over there instantaneously—without...
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In order for the reaction to work, we need to use two moleculeы of base per molecule of reactant (2 equivalents). Why do we need to use two equivalents of base?
Since for a base to abstract a proton it has to use 1 equivalent there and remaining one can be utilised to carry out the reaction(as one of the reactant)...
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I need to figure out the most stable structure of a specific compound with a detailed explanation.
Rules for estimating stability of resonance structuresThe greater the number of covalent bonds, the greater the stability since more atoms will have complete octets.The structure with the least number of...
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<ul><li>Compute the difference between molar specific heat capacities for ideal gases </li><li>Ratio (γ ) for the two principal specific heats of monatomic and diatomic gases respectively </li></ul>
Molar heat capacity is a measure of the amount of heat necessary to raise the temperature of one mole of a pure substance by one degree K. Specific heat capacity...
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