Wednesday, November 12, 2014

Evidence of Evolution

1. Study of fossils: Fossils decay of bones can relate to their age but mostly the differences that animal has to its current day ancestor, this can attribute to how it evolved overtime

2. Homologous Structures: These structures are ones that are vital for your bodies survival, such as the heart, lungs, and brain.

3. DNA: Deoxyribonucleic acid or DNA is a double helix that is in all your cells, they contain the information on how to do certain tasks.
Study of Fossils
Homologous Structures

DNA

Evidence of Evolution by Deniz Hera

List and explain 3 examples of evidence of evolution. Support your answers with at least one picture. 
This assignment is worth 10 points. 
1. Vegistal Structures- genetically determined structures or attributes that have apparently lost most or all of their ancestral function in a given species, but have been retain through evolution.


2. Homologous Structures- Body parts that are similar in origin and function. Two or more species share a common ancestor 



3. Embryology- The study of embryos and their development. The earliest growth stage of an organism


Evidence of Evolution

Evolution is the idea that living things evolve, or change, from something else. An example is that humans evolved from gorillas. You may be thinking, "How do we know that evolution has occurred?" In this blog post I will be giving you three examples of how we know that evolution has occurred.

1. Fossils- Fossils provide a great example of proof that evolution has occurred. You have probably seen a rock that has a cool shape imprinted in it. It may look like a leaf or a bone. If you have ever seen this you have probably seen some sort of evolution. An example is if you find a dinosaur bone and then you compare it to a reptile bone, they probably look similar. This is because a reptile may have evolved from a dinosaur.


2. Homologous Structures- By studying homologous structures we can see that bones/fossils are similar in many ways. Homologous structures are bones that look the same, but come from different species. For example the hand bones of a panda are very similar to the hand bones of a gorilla. Although they are different species they have very similar bones and traits.


3. Pesticide Resistance- Pesticide resistance is another example of evidence of evolution. Pesticide resistance is when a species creates an immunity to a killer. For example, when you spray your weeds with "weed killer" to kill them the weeds will die. If you spray the weeds with the "weed killer" for a long amount of time the weeds could develop a pesticide resistance to the "weed killer."

Evidence of Evolution

Evidence of Evolution
1.  Fossils.

        Fossils are evidence of evolution. Fossils can determined if animals lived in families or alone, What they ate, Where they lived, and how they evolued over time.


2.  Studying DNA

         By studying DNA you can find bumps in the road which can change the species over time and help them evolve over time. Also studying DNA to compare different animals DNA to see how closely related they are.


3. Vestigial Structures

         Vestigial Structures are  body parts that don't seem to have a function. Vestigial Structures are evidence of evolution because they once were used when we need them but now do not. For example horses can move there ears with there ear muscles, we also have those some muscles but we no longer need them or use them.


Tuesday, November 11, 2014

Evidence of Evolution By Faith Walton

List and explain 3 examples of evidence of evolution. Support your answers with at least one picture. 
This assignment is worth 10 points. 

1. Studying DNA 

          A.) by studying DNA we can see a glitch or a Mutation showing that the organism has changed from its parents and evolution has accrued.


2. Homologous Structures
       A.) Homologous Structures are structures that look that same, like how a bats wing and ours                                                              arms look the same 

        B.) They have similar functions 

        C.) Means that the animals have a common 



3.   Fossils 

         A.) Fossils can show us that we are not all that different that most other organisms and that we might have all came from a common ancestor.
         B.) This in not an easy task using fossils to prove evolution because not all animals are fossilized when they die. 


Monday, October 27, 2014

Effects on the Environment


Write and Explain the kind of effect( positive or negative or both) the following have on the environment and why. 
This requires research. 

1. Riding ATV's Over the Land-Negative- ATV related injuries has increased from 10,100 in 1982 to 58,200 by 1992.

2. Wind Turbines from wind farms.- Negative- Birds have to change their flying route's because the wind turbines are to tall and killed - somewhere between 140,000 and 328,000 birds die each year from collisions with wind turbines.

3.Flooding-negative- Floods can cause tons of damage to city's, states
positive- Floods give plants and trees water. Can give people some more water to help grow food.

Thursday, October 23, 2014

Positive and negative effects on the environment

Write and Explain the kind of effect( positive or negative or both) the following have on the environment and why. 
This requires research. 
1. Riding ATV's Over the Land.
Riding ATV's is a negative effect on the environment because it ruins the land and effects the world terribly. It kills plants that are living and ruins the grass also can accidentally kill an animal.




2. Wind Turbines from wind farms. 
Wind turbines are a positive effect on the environment because we use them for less fossil fuel. 







3.Flooding

Flooding is a negative effect to the environment because it flooded fields and kills all the stuff that was planted there and kills other plants and trees.