Can I take a human sperm and animal ovum to produce a new creature?

No.

People do not have any close enough species to successfully reproduce with. Even the closest species to humans (orangutans, chimps, and gorillas) are far too separate to breed with. 

Some other animals are capable of hybridization, or can breed with each other to produce offspring. Hybrids like mules, wholphin, hybrid iguana, and killer bees can exist in nature, and can even be capable of reproduction on their own. Most hybrids are sterile and cannot reproduce.

Hybridization is frequent in plants, and is capable of producing fertile offspring. Limequats, loganberries, wheat, and grapefruit are all hybrids of various plant species.

The biggest factor in hybridization is genetic compatibility. if two species are too far removed, they will be unable to hybridize. For example, if one species has more chromosomes than the other, hybridization is impossible. There are no human/animal hybrids.

Why did America enter WWII?

One can easily point to the Japanese attack on Pearl Harbor as being the reason why the United States entered World War II. But while this is certainly true, the answer regarding why the country entered the war is more nuanced than simply thanks to the occurrences of a single event.

Even as late as 1940, U.S. President Theodore Roosevelt had told the American people that their "boys are not going to be sent into any foreign wars." However, British Prime Minister Winston Churchill was persistent in asking for U.S. assistance and participation in World War II. Some believe that Roosevelt was taking steps toward bringing the United States into the war even before the bombing at Pearl Harbor.

After the attack, only one congressman opposed the declaration of war. If the attack hadn't been enough to provoke the United States, then Germany's declaration of war against the United States just four days later certainly would have been. 

What was in the mind of the poet when he wrote the poem "The Road Not Taken"?

When asked if he would reveal the intended meanings in his poems, Robert Frost replied, "If I wanted you to know I'd had told you in the poem." So, no one really knows the hidden meaning of "The Road Not Taken." 

One thing that is known about this poem by Frost is that he composed it shortly after returning home in the United States from his trip to England, where he accompanied his fellow poet and friend, Edward Thomas on walks. This friend would often take Frost with him on woodland strolls where Thomas would be very indecisive about which path to take. He would worry that, perhaps, he had chosen the wrong path as another might have had more fauna and flora.

At any rate, Edward was rather indecisive. So, he certainly fits the character of the poem's speaker who suffers in the second stanza as he deliberates over his decision to take the "other" path that was "just as fair"--

And having perhaps the better claim,
Because it was grassy and wanted wear;
Though as for that the passing there
Had worn them really about the same

Still, the power of poetry is that it speaks to the heart, and there are always various meanings that different people derive from poems. So, while Frost may have had some fun writing about this friend, he also may have intended for his readers to think of the metaphoric meaning of his poem as one about life's choices and their profound affect upon people. After all, in 1961 Frost did say that "The Road Not Taken" is “a tricky poem, very tricky.”

How would you describe the dualism in Winston Smith's personality in Orwell's 1984?

Dualism is a feature of Winston's personality and we see strong evidence of this in Part One, when Winston is battling between conformity and rebellion against the Party. The fact that Winston purchases the diary, for example, (and risks being imprisoned) suggests that he desperately wants to make a stand against the Party's oppressive regime. This is further reinforced by his writing of the phrase, "DOWN WITH BIG BROTHER," over and over.

By Chapter Two, however, Winston's internal need to conform takes over. He realises that writing in the diary is an intensely risky business:

And in front of him there lay not death but annihilation. The diary would be reduced to ashes and himself to vapour.

Winston's fatalistic attitude contrasts strongly with his desire to rebel and to build a future in which the Party no longer exists. It creates an internal sense of conflict within Winston and it is this conflict which drives the plot of Part One. 

How did Maniac create more trouble when he raced Mars Bar in the book Maniac Magee?

Maniac won his race with Mars Bar running backwards, which was insulting to his opponent.

Maniac just did not understand what he was getting into when he met Mars Bar.  He didn’t realize that the boy had a reputation for being tough and that Mars Bar was a threat to him.  His first mistake was not acknowledging Mars Bar's greatness, and his second was taking a bite out of his candy bar.

Maniac was really confused by Mars Bar.  Just as race was not a concept he understood, toughness was lost on him.  He made an enemy of Mars Bar though, and he realized that.  After Grayson's death, Maniac returned and ran into Mars Bar again.

Mars Bar told him he had new sneakers, he had been working out, and he was a faster runner.  He challenged him to a race.  Maniac was not sure what to do.

Even as the race began -- even after it began -- Maniac wasn't sure how to run it. Naturally he wanted to win, or at least to do his best. All his instincts told him that. But there were other considerations: whom he was racing against, and where, and what the consequences might be if he won. (Ch. 38) 

Maniac’s decision to run backwards was an unusual solution to a difficult problem.  He wasn’t really trying to humiliate Mars Bar by proving that he could run faster backwards than his opponent could run forwards.  He just didn’t know what to do and it was the best he could come up with. 

Why did I do it? was all Maniac could think. He hadn't even realized it till he crossed the line, and he regretted it instantly. Wasn't it enough just to win? Did he have to disgrace his opponent as well? Had he done it deliberately, to pay back Mars Bar for all his nastiness! (Ch. 38) 

In reality, Maniac just loved to run.  He enjoyed being on the East End among the people there.  He really missed it and the Beales. He wished he had a home.  Maniac had again added to his legend without meaning to.

Which type of rock is older and why?

Without looking at specific samples of rocks and comparing them, we can rely on a few general rules for dating rocks.

The Law of Superposition says rocks on the bottom of a sequence (a vertical cross-section of rock) will be the oldest, as new material usually accumulates on the top. There are definitely exceptions to this, such as plate tectonic activity that can go so far as to flip rock sequences completely upside-down, but this isn't very common and it's usually easy to recognize when it does happen.

Sometimes newer rock will protrude into older layers. Viewed from the side, this will appear like a spike or tube of rock that cuts through several layers, and those layers will be continuous on either side. If this is a volcanic layer, it's typically called a plutonic intrusion. In this case, the intrusion is younger than the layers it cuts through. 

In general, it's hard to say which rocks are older based on the type of rock themselves, but granites tend to be very old.

Can you summarize Little Red Riding Hood in 70 words?

The story of "Little Red Riding Hood" was first published by French author Charles Perrault, who was influenced by previous oral tellings of the tale. This version, of course, later proved to be of tremendous influence to Jacob and Wilhelm Grimm (or the Brothers Grimm) in their own rendition of the story. Since you are probably most familiar with the Grimm's version, let's summarize that one in seventy words, as you have requested:

Little Red Riding Hood is sent to deliver goodies to her sick grandmother. On the way, Little Red meet the Wolf, who convinces her to stray from the path to pick flowers. The Wolf hurries to the house and eats the grandmother. When Little Red arrives, the Wolf pretends to be her grandmother and eats the girl as well. A huntsman saves the pair by cutting open the Wolf's belly.