Give a brief note on Mr. Whymper from Animal Farm Chapter 6.

Mr. Whymper is the go-between for the animals.  His job is to communicate and trade with people so the animals do not have to.

The vision of Animal Farm is a place where animals have no contact.  Anything that walks on two legs is an enemy.  Anything that walks on four legs, or has wings, is a friend.  However, the reality is that the animals often want things they can’t produce on the farm, and want to sell their surplus.

There would be no need for any of the animals to come in contact with human beings, which would clearly be most undesirable. He intended to take the whole burden upon his own shoulders. A Mr. Whymper, a solicitor living in Willingdon, had agreed to act as intermediary between Animal Farm and the outside world (Ch. 6)

There are a few things wrong with this.  First of all, the pigs are really taking advantage of the other animals. They use their labor, and then do not give them much in return.  The goods and services the pigs want from people are generally luxuries.  Napoleon wants alcohol, for example.

Not a pig appeared to be stirring. It was nearly nine o'clock when Squealer made his appearance, walking slowly and dejectedly, his eyes dull, his tail hanging limply behind him, and with every appearance of being seriously ill. (Ch. 8)

Squealer says that Napoleon is dying, but he is actually drunk!  The pigs get more and more focused on themselves and not the animals they are supposed to be protecting.  They even sell Boxer to the butcher when he hurts himself and can’t work.  By the end of the book, the pigs are playing cards with the people and regularly fraternizing with them.

Mr. Whymper represents that countries that remained neutral and helped the communists trade with and communicate with capitalist countries.  As with the animals, the communists could not completely keep to themselves, and eventually became corrupt.

What is the narrative structure of "Porphyria's Lover"?

"Porphyria's Lover" is written in dramatic monologue, a format Robert Browning popularized and in which he excelled. Unlike some of Browning's monologues that don't have an actual plot but are musings of a character, this poem has a story arc. In the beginning, the setting is described: It is a dark and stormy night. The inciting incident is when Porphyria glides in. She removes her wet clothing, lets down her wet hair, builds up the fire, and then sits down next to him. She sensually bares her shoulder, puts the narrator's arm around her waist, and pulls his cheek down to rest on her. She whispers she loves him. Evidently the narrator has been thinking jealous thoughts about her--presuming she had been unfaithful to him. We do not know if these doubts he has about her are true or whether they are the imaginings of his twisted mind. Instead of being content in the love she is showing him now, his heart swells with pride at the fact that she worships him. He debates what to do. In the climax of the story, he finds "a thing to do": He winds her hair around her neck and strangles her. In the denouement, he unties the hair and kisses the lips of the corpse. He then sits with the corpse, with her head on his shoulder like his had been on hers. They sit that way together until morning as he imagines she is happy that now she has him to herself forever. The final words, "And yet God has not said a word," suggest the theme: That the narrator is a psychopath who cannot hear his own conscience despite the atrocious act of murder he has just committed. 

What are atoms made of?

All atoms contain a positively charged nucleus and negatively charged electrons. According to the planetary model of atom, the electrons orbit around the nucleus, similar to the planets orbiting around the star. The distance between the electrons and the nucleus is much (about 10,000 times) larger than the size of the nucleus itself. Such model of an atom is not actually correct (because, according to classical electromagnetism, an electron moving in circle would emit electromagnetic waves, lose energy, and ultimately fall into the nucleus), but it is useful in explaining some phenomena. The theory of quantum mechanics provides a very accurate description of the distribution of the electrons inside the atom.

The nucleus consists of positively charged protons and neutral (not carrying electric charge) particles called neutrons. The electric charge of a proton is equal in magnitude to the electric charge of an electron. The neutrons and protons are similar in mass and much (about 1000 times) heavier than electrons. Not all atoms have neutrons in their nuclei, for example, a nucleus of a Hydrogen atom has just one proton. The number of electrons in an atom always equal the number of protons in the nucleus, so the whole atom is electrically neutral.

Each proton and neutron consists of particles called quarks. There are different types of quarks, and they carry electric charge, either positive or negative, that is 1/3 or 2/3 of the charge of an electron. So far it is not known if the quarks could be further broken down into smaller elementary particles.

What are the differences and similarities between Ali's adoption and Sohrab's adoption in Khaled Hosseini's The Kite Runner?

There are several similarities and differences between Ali and Sohrab's adoptions throughout the novel The Kite Runner. Both Ali and Sohrab's parents were killed, making both characters orphans at a young age. Ali's parents died when two wealthy young men hit them while driving. 

High on hashish and mast on French wine, they struck and killed a Hazara husband and wife on the road to Paghman (Hosseini 22).

Sohrab's parents were both killed by the Taliban. Rahim Khan tells Amir,

Hassan protested again. So they took him to the street—and order him to kneel—and shot him in the back of the head...Farzana came screaming and attacked them—shot her too. Self-defense they claimed later (Hosseini 157).

Both Ali and Sohrab were Hazaras who were adopted by Pashtuns. Once they were adopted, Ali lived in Afghanistan with Amir's grandfather, while Sohrab was taken to live in America with Amir. Also, the men who adopted Ali and Sohrab were both considered successful individuals. Ali was adopted by Amir's grandfather who was a respected judge, and Amir is regarded as a prominent author in America.

The relationship between cellular respiration and photosynthesis?

Cellular respiration and photosynthesis are complementary processes. The products of each of these processes is used as the reactants for the other. Photosynthesis is the process by which plants utilize solar energy and generate glucose and oxygen. The relevant chemical equation is

6CO2 + 6H2O + light energy -> C6H12O6 + 6O2.

Carbon dioxide and water are the reactants  in this process. In comparison, cellular respiration converts glucose and oxygen to carbon dioxide and water, along with the production of ATP molecules. The relevant chemical reaction is given as:

C6H12O6 + 6O2 -> 6CO2 + 6H2O + ATP

As can be seen from these chemical reactions, the products of photosynthesis are the reactants for cellular respiration and vice versa. Hence, these are complementary processes and are necessary for sustaining each other.

Hope this helps.

How does Tuck seem to feel about his changelessness for the last 87 years? Support the answer with textual evidence.

Tuck does not like his changelessness.  Perhaps he did at one point, but after 87 years, Tuck has realized that he missed the normal ebb and flow of a changing life.  He misses the maturing process.  He misses seeing his kids change.  He misses seeing himself change.  He feels left out that the world gets to change around him, but he doesn't get to change with it. He feels completely out of place and out of sync with the world.  

The frogs is part of it, and the bugs, and the fish, and the wood thrush, too. And people. But never the same ones. Always coming in new, always growing and changing, and always moving on. That's the way it's supposed to be. That's the way it is."

Tuck goes on to further explain why he feels that life has left him out.  

"It goes on," Tuck repeated, "to the ocean. But this rowboat now, it's stuck. If we didn't move it out ourself, it would stay here forever, trying to get loose, but stuck. That's what us Tucks are, Winnie. Stuck so's we can't move on. We ain't part of the wheel no more. Dropped off, Winnie. Left behind. And everywhere around us, things is moving and growing and changing.

Tuck sees all of life changing, except him and his family.  He desperately wants to be a part of that changing world again.  

Tuck's most powerful statement in the entire chapter is when he explains to Winnie that he wishes he could go back to how he was before, so that he would be able to die.  That sounds odd, but his explanation is near perfect.  He says that living is impossible if there is no threat of death.  He says that in order to truly live, a person has to be able to die.  Tuck doesn't feel as if he is living.  He feels that he and his family simply exist. . . like non-living rocks on the side of the road. 

"You can't have living without dying. So you can't call it living, what we got. We just are, we just be, like rocks beside the road."

I need a summary of The Omnivore's Dilemma: A Natural History of Four Meals by Michael Pollan.

The Omnivore's Dilemma: A Natural History of Four Meals by Michael Pollan is a work of popular nonfiction that deals with both the medical and ethical issues of food choices currently made in the United States. In particular, Pollan attacks much of the food industry for not only degrading the environment but for contributing to obesity and related medical conditions.

The book is divided into three main sections, each of which explores the origins of a common type of North American meal. The first section focuses on conventional industrial food production and the role of large scale corn farming on much of fast food. It helps readers understand the process by which meals are produced in the food industry.

The next section focuses on organic farming, examining both large scale organic farms and small family farms. The author suggests that although industrial scale organic farming is superior to conventional farming in terms of its effects on the environment and the quality of the food produced, it still involves large scale monocultures, and is less desirable than farms that raise diverse plants and/or animals on a smaller scale.

Finally, Pollan examines hunting and gathering as a way to create a meal. While this section is entertaining, it not a method feasible for most people, as Pollan acknowledges.