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"Both natural processes and human activities are capable of changing the environment."-Study Island
Slow Changes to the environment include:
•Changing of the seasons
Rapid Changes to the environment include:
Humans contribute to the environment in many ways, especially if they are treating the environment bad.
•Fossil fuels burning
•Genetically engineering organisms
So we are going to focus on ecological succession and it's impact on the environment. Ecological succession is basically a process that a community undergoes and has a predictable change. Think of "I Am Legend" when you see the deers running around and trees growing in the streets. Basically that street has turned into a "forest" that's ecological succession.Example below:
Over time as you can in 1840 it started out as a pond but ended up being a forest. In 1870 you can that some of the plants are starting to get a little bigger and that the fish are still present. In 1900 algae are starting to fill up the pond. 1930 the pond is almost covered now with a tree on the side and algae almost filling the whole thing. In the last two years the trees are more present with the pond covered with algae and dirt.
Questions to think about:
What is ecological succession?
What is primary ecological succession?
Listed below is pictures of ecological succession which one shows it the most?
Michael Phelps who exercises 9 hours/day
Lindsay Lohan who needs to gain weight for a role
Angelina Jolie, a vegetarian with a voracious appetite
Dora la Exploradora who is vegan
Nick Jonas who is diabetic
- to recommend a drink (un vaso de = a glass of, una taza de = a mug of)
- to be creative (Peruvian Andes cuisine?)
You can use words that are not on the vocab sheet.
A wheel and axle has a very simple use: to reduce the size of the input force needed for a task by extending the distance through which the force is applied. The axle turns in the same direction as the wheel, and because the wheel has a larger radius than the axle, the distance the wheel travels has to be greater than the axle. Because of this, the input force that is needed to originally turn the axle is reduced. Common examples of a wheel and axles are used in doorknobs, wagon wheels.http://etc.usf.edu/clipart/35700/35781/wheelandaxle_35781_lg.gif
Había una familia en las montañas de Virginia. Había un papá, una mamá, un hijo, y una hija. La familia vivía en una casa humilde, pero ellos gustaron el humildad de la casa. La familia tenía un perro. Era una perro especial, y era de ascendencia labordoodle. El perro era bastante importante. El perro tenía un secreto. El Perro estaba preocupadísima. El perro lloraba. El perro le sollozó al mamá, "El Mar, mamacocha, está furioso. Mamcocha va a destruir el mundo. Había un problema. Era un problema grave.
Había un gato. El perro le dijo al gato, "Hay un problema. El mar, Mamacocha está furioso! El Mar va a destruir el mundo. Sube la montaña más alta con nosotros." El gato comprendeó perfectamente. El gato se escapó con el grupo.
Había un cerdo. El perro le exclamó al cerdo, "Hay un problema. El mar está enojadísimo! El mar va a destruir el mundo. Escala la montaña más alta con nosotros, por favor!" El perro era muy preocupadísima. El cerdo comprendío bien, pero no caminaba con el grupo. El cerdo saltó.
Había un delfín. El perro le dijo a la delfín y hablé la problema. El delfín entendío, y se fue con el grupo. Pero, él necesitó a nadar. Entonces él buscó un río.
Había un espantapájaros. El perro explicó al espantapájaros, "Hay un problema. El mar, Mamacocha, está furioso. El mar va a destruir el mundo. Escala la montaña más alta con nosotros." El espantapájaros comprendió, pero no se fue con el grupo. El espantapájaros montó en el cerdo.
Había un unicornio. El perro le dijo, "Hay una problema! El, Mar, Mamacocha, está furioso. El mar va a destruir el mundo. Sube la montaña más alta con nosotros." El unicornio no les hizo caso. El unicornio no se fue con el grupo y era demasiado perezoso.
El grupo subió la montaña más alta. La familia, el perro, y el gato subieron Huillcacoto, la montaña más alta. El cerdo y el espantapájaros saltaban. Y el delfín nadaba.
El mar subió. El mar subió con furia. Había un problema. Era un problema grave. El unicornio no estaba con el grupo. El unicornio corrio. El unicornio no caminó. El unicornio no voló. El unicornio corrió muy rápido. El unicornio subió la montaña más alta, pero se cayó.
Por fin el mar, Mamacocha, estaba contento y no subió más. El mar bajó. La familia bajó. El perro bajó. Los otros animales bajaron. Y todos estaban felices. Y ya no había problemas.
Genetics explains why we are the way we are. It explains how our parents effect our lives, and the traits that we inherit, and generally how our body works. Genetics also explains what can effect our lives, for example how our environment changes how we act or look. It could impact our future greatly, depending on what happens with cloning. Cloning people could provide endless organs, which would save a lot of lives but it is very controversial whether this is morally correct to do or not.We have both a creative source of information, and a traditional presentation format. Please enjoy both, and happy PSSA testing!
This blog post will basically touch the simple facts, the history of genetics, etc.
1886: Gregor Mendel discovered that traits of offspring depend on the parents traits, which may be dominant or recessive. ( but this was somehow lost)
1902: Theodore Boveri & Walter Sutton used color to observe chromosomes
1905: Nettle Stevens found out that all homologous chromosomes are the same except the ones that determines sex (X,Y)
1909: Thomas H Morgan made many important researches in fly genetics and linked analysis that apply to all diploid organisms
1941: Beadle and Tatum discovered that each gene encodes one protein
1944: Oswald Avery identified DNA as genetic material
1953: Rosalind Franklin and Maurice Wilkins showed that the DNA is a double helix, Thomas Watson and Frances Crick figured out that the base of the double helix enabled replication
1970: Tamin and Baltimore found a enzyme used to clone genes
1981: First transgenic mammals are made
1996: Iam Wilmut cloned the lamb Dolly from adult mammary gland tissue
1996: Iam Wilmut cloned the lamb Dolly from adult mammary gland tissue
Your genetics decipher what you will look like, and your features.
There are many things you can learn about your genetics like your DNA and what factors are inside of it to make it important, also your genotype/phenotype, and what a recessive gene and dominant gene is.
Lets start simple:
DNA stands for Deoxyribonucleic acid. Your DNA is a molecule that carries all of your genetic information
Genotype describes what certain alleles are on a certain chromosome
Alleles are a form of a gene that play part on a specific chromosome, which controls a certain trait.
There are dominant and recessive alleles
Dominant alleles are upper case and usually the trait that comes out the most
Recessive is usually shown with an lower case letter, and in this allele it is usually the trait that does not show unless the organism is homozygous.
Homozygous just means that both of the alleles are either dominant or recessive
Heterozygous means that one of the alleles are dominant and one is recessive
Phenotype is the physical characteristics of the gene
There are many ways that you can determine what exactly an offspring’s traits will be by using genotype. One way is to look at the alleles of the two organisms. Also if you really wanted to be accurate you will put them in a punnet square.
Punnet squares is just a fancy word to describe the separation of alleles to figure out what an offspring may look like, also to fish out the chances of having a certain child.
For example a mother and father are about to have a child they want a child with blue eyes. The mother has two alleles bb, which are homozygous. The father also has two alleles Gb, which are heterozygous. Knowing that the father has green eyes, because greens allele is dominant and blue is recessive you can figure out what is the chance of the child having blue eyes.
By looking at this you can see that the child has a 50% chance of having green eyes or having blue eyes. But what if the father was also homozygous?
In the PSSA I do not know exactly what kind of questions will be asked, but make sure you do the study island and also look up a few things to make sure you understand such as:
Where your DNA gets its information from and what it is made up of and how its held together
How many chromosomes a human has (46)
Different types of gene disorders and also different types oh names for each type of gene
What kind of diseases are gene orientated
|Topic||Key Points||Important Diagrams|
|Theory of Evolution||Animals Evolved to adapt during different weather conditions. Many theories of evolution are just hypothesis.||The monkey to man diagram|
|What I learned||Questions|
|How humans and other species have evolved to adapt in their environment.|
What would happen if the land disappear? Would humans adapt and grow fins.
What is Structure and Function.
Function and structure are related, because of a certain structure a living thing make contain makes the object function the way it does. The are a lot of structural future in humans, plants, animal and all living things. The relationship of a structure and function is the structuring levels from molecules to organism ensure successful functioning in all living organism and living system. Note one structure can have multiple function.From my under standing structure and function can be broken down in to several part like chemical level which deal with atoms proton etc as the structure and what they do is the function.
Classification of Living Things
Living things are placed into groups based on both structural and functional similarities. For example, bacteria are prokaryotic cells, which means they lack a true nucleus. These are structural characteristics. A functional characteristic which defines bacteria is that they reproduce by binary fission. Plant cells are structurally different to other cells because they contain a large central vacuole and plastids such as chloroplasts. These structural features also support a plant’s function, since the presence of chloroplasts allows the plant to carry out photosynthesisExample of a structure and function:
Amino acids structure directly affects its function. It’s a lock and key method that cannot work unless the structure fit together. When they fit they can carry out the function of speeding up a chemical process.
Cellular level – the structure of
cells is linked to their function. For example, lung cells are very thin,
which allows gases to diffuse easily through the cells.
Cellular ProcessesThere are several types of cellular processes that occur in the cells of living things.
DNA replication is a biological process that occurs in all living organisms and copies their DNA; it is the basis for biological inheritance
For this question we know that cellular respiration
The process of cell in which cells turn food into usable energy in the form of ATP. We know we consume oxygen and then release carbon dioxide. Looking on the option a only part it true .We consume energy, but we don’t absorb energy we use our stored energy. B is no right at all we don’t produce oxygen. C is the correct answer we consume oxygen and release energy. D is like B so it wrong also.