Many people used to believe that dark peppered moths were changed because of the pollution at the time. However, is this really the reason why they changed? Just because of pollution?
          Studies show that the dark peppered moths were dark, not because of pollution, but because of natural selection. Natural selection is when two organisms of species mate in a natural way. Scientists were very confused as to why there used to be a few dark peppered moths, but ever since pollution came, tons of dark peppered moths started to appear. It turns out that the dark peppered moths were attracted to the dark forests that were caused by the polution. In conclusion, pollution caused the dark peppered moths to change, and develop.

Limited resources and overpopulation can be a big problem. First of all, limited resources can mean many things. It can mean limited food, limited water, limited anything! In most cases, food is the problem. All species eat the same things as another species does. For example, birds and some mammals eat insects. If there were limited insects, and an overpopulation of birds and mammals who eat insects, what would happen?
       In this case, I think that evolution comes to view. While this competition goes on, some systems in each species' body might have an effect on this. For example, a dog. Has a dog always been like the species we've seen today? No, because it is proven that dogs were originated from wolves. We've all should've heard or known that a wolf has been domesticated as a pet a long time ago, so over generations and generations, the wolf has slowly changed into the dogs we see today. In fact, there's a huge variety of dogs now. 
       Would humans like today change as well? That's a question that no one can know. However, many things in life change. Whether it's an animal, or a resource, or a tree, or whatever. This doesn't mean that the changes are always good, but if we keep doing what we do best, then we will make a good chang

During 2nd quarter, somewhere near the end, Mrs. Poole had us do a DNA key chain project. It was really fun, and the class had a great time. 
          First, we had to pick our assorted beads. I don't remember how many, but I do know that we had to pick green, blue, gold, red, white, and yellow colored-beads. The yellow and white beads were circular beads, while the rest were rectangular. We also had to get our strand of wire. Next, we inserted one of each bead in a particular order, because each bead represents a base and an element of the DNA. After that we created the base for the key chain all together. Then we inserted our bead patterns. First of all, Mrs. Poole always said that blue and gold always together, and green and red always go together. After that, you add a white bead and a yellow bead to each side. Then, when the pattern is done, you go and make it into a loop, then insert the loop wire string into the rectangular bead. You do the same to the other side. Then you gently pull the two strings together and as you pull, notice that they attach.

If you just keep repeating these steps over and over, then eventually you will have your DNA keychain. It's also a good way to see how it develops.

Over the past 2 quarters, we've been doing Quizlet flash cards. We're given a paper with the list of things that are needed in the flash cards. However, it is our job to find the definitions. 

I think that Quizlet is a good way to learn. By looking for the definition in the book, we learn it better because searching for the definition is something that we're going to do for tests. Think of it this way: you're in the middle of a test and a word from your Quizlet comes up. You try really hard to remember it, but it doesn't work. However, when you search really hard for it, you'll eventually find the definition. You see, I think that searching in your brain is sort of like searching for something in your textbook. Also, Quizlet let's us play some games. We can match them, type them, or memorize them. It's like an online study guide! 

In conclusion, I think that Quizlet is one of the better things to use for studying. You can make your own to study, or you can use someone else's. Quizlet helps you learn more, even by creating a list yourself!

       Punnet squares are used to find genotypes of offspring. You can use letters to represent a genotype, but most genotypes already have there represented letters.

    Science is my most difficult class. The main reason is because I have a hard time trying to remember the scientific names for things that we had to learn. Since it's so long, I'm not used to using long words like that. Especially if it's for something that already has a name. 
       Throughout the last two quarters, my main struggles have to be in the cells unit. Sure, there were plenty of fun experiments and activities we did, like the edible cell project, however, it was the tests and the quizzes and myself that made it hard for me. I blame myself because I didn't properly use the study guides we were given. All I did was just look at it, read a couple of words, and then put it away. This year will be different, however, because I will try to make up for my bad grades. Anyway, there were many names and definitions. We even had to figure out who found cells! The tests questions were hard too. About 2 of my notebooks weren't complete, which led it to a "C." 
        This quarter, I will make up for all my mistakes and study properly. I won't try to mess up this time, or use any shortcuts, because that's what led me to my downfall. This year is going to be different.

     DNA replicates in a process called mitosis, along with the cell. There are 6 different stages in mitosis, and the DNA being copied is in the majority of them. 
     The first stage is called interphase. Interphase is the phase when the cell rests and grows for most of its life time. Then, after this phase, the first phase of mitosis is called prophase. In this phase, the chromatin and nucleus slowly start to form chromosomes. The third phase is called metaphase. Metaphase is when the chromosomes have become attached to spindle fibers. After this one, is the fourth phase called anaphase. Anaphase is when the centromere splits and the two move apart to the opposite sides of each other. Next is telophase, in which the chromosomes stretch out and and become daughter cells. The last phase is cytokinesis, in which the new cells pinch in two. Plant cells in mitosis have a cell plate formed, in which the cell plate splits them apart.
     Copying DNA is a very important job for our bodies. It allows us to be healthy and grow. 

             One of the most famous holiday legends who is known as St. Nick, Nicholas Claus, or Father Christmas, however, more popularly known as Santa Claus. Scientists say that he's fake. Children say that he's real. Is it true? We will never know. 
                However, according to an article and a rebuttal article, it is concluded that he is dead. They've been talking and asking many questions about him, like how does his reindeer fly, or how does he travel 650 miles per minute. Some say that his reindeer flies because of magic acorns, while others say that it's just the way things are. According to their calculations, they say that Santa gains more than 4,000 pounds because of the cookies and milk he eats. I say that he is fake, because really, it isn't humanly possible for someone to gain that much weight in a night. Whether they're Santa Claus or not. Also, there is no such things as "magic acorns" that make reindeer fly. In fact, reindeer don't fly at all!  They just jump really high. 
              In conclusion, I believe that Santa Claus isn't real whether he brings presents or not. Sometimes, even little children knows he's not real, but are likely to fake it to amuse their parents. I know that not everyone will agree with me but I would be better off saying what I believe in instead of what I disagree with.

        The DNA is the main thing that copies our genetics from our parents. Their  shape is like a twisted ladder, also known as a double helix. They have four nucleotides: adenine, guanine, thymine, and cytosine.
         DNA structures are  connected by little small bars of deoxyribose sugar. They  are carried by pairs of nucleotides. Each pair will never be separated, because each pair is the same as another. Adenine and thymine will always be a pair, and so will guanine and cytosine. Their structure is a double helix. I don't know why, but I do have a theory. My theory is the reason why it is a double helix is because it helps transfer the deoxyribose sugar faster. The spirals of the helix makes the it more flexible, fluid, and smooth, making the sugar go up or down easily. Think of a twisty slide. If the slide was straight, then it wouldn't be as smooth as it was before. The twist of the slide helps by making it smoother, because of the flexibility.
          The structure of DNA took many years to figure out. A woman scientist, called Rosalind Franklin, took many years and days to find the information. She took X-rays, and she drew what she discovered in her little notebook. DNA is what makes us different, and what gives us our similarities. So to conclude it, the structure of DNA is a double helix. 

         There are many types of cells everywhere. Plant cells, animal cells, nerve cells, you name it. They also look different too. I don't think that any of different species of cells look the same. They all have their unique looks and ways of functioning.
       Plant cells have a cell wall, something that the animal cells don't have. They help secure the plant cell to protect it. They also have something called a chloroplast. The chloroplast has a green colored pigment, which is the reason why plants have that green color. The chloroplast captures energy from the sun and turns into food to feed the plant, and this process is called photosynthesis.
        Animal cells are a bit different however. Animal cells don't have a chloroplast and a cell wall. They have to consume their own food and break it down to release it. The cell part that does that is called the mitochondrion. It's the powerhouse of the cell. 
         Both of these cells have things in common too. They're both eukaryotic because they have nuclei in them. The nucleus tells each cell what to do and is the "brain" of the cell. In ways, they both have their differences and similarities. Sort of like people. However, in reality, they're just cells doing their job.