Compare two of the organisms that we have dissected Discuss at least 2 similarities and 3 differences

There are many organisms that we have dissected which are the clam, fish, crayfish, worm, grasshopper, frog and starfish. The ones that have the same habitat is the starfish and the clam the both live in clean water. The body systems that they have are respiratory, digestive, cardiovascular, and many others. Their oragns have to be close to the same because they live in water and their organs have to adapt to the water so its bulit to fit the water habitat. the digestive and respiratory system have to be alike in order to save in the water they have to have a digestive system that will be able to digestive the food and a respiratory system that will and allow the organism to breath. These to organisms are different in many ways one because of their exteior shell and the way its bulit to hide the organism from its enemies. Another way is that they live in different parts of the ocean one lives near the shore and one lives on the bottom of the ocean. The clam develops pearls which the starfish does not do at all so therefore the oragnisms are simliar and different.

What was most interesting about this week's dissections?

There were many dissections to choose from that we have done in biology. It was interestng to see the body part of many different animals. The worm and the crayfish were very interesting to see how each animal survive off the little organs that it has. The organs and body systems ared different and similar to others animals body systems. The most intersting dissection was the worm because i didnt get grossed out like i thought because it was clear to see the parts of the worms and to see its blood vessels and how the body of a worm works.

What surprised you from the worm's dissection?

The worm dissection was very interesting I have never seem anything like it before. It was a surprised to me because I am used to a human body structure. A human body structure it completely different from an animals body structure because it uses different organs and systems that keeps it alive. The worm dissection was surprising to me because i have never seen a structure so different. I never knew that a worm even had blood vessels i didn't know it had a heart i didn't know its body systems until i did the worm dissection.

Get a picture of alternation of generations put it in your blog and explain how it relates to plants

In this picture it shows alternation of generations and it shows that it relates to plants. This process shows what is in plants and how many pores and gametes they are. The term of alternation of generation is related to the life cycle of plants . Diploid and Haploid generation shows the cycle of fertilization, meiosis, and mitosis of a plant. It relates to a plant because its the life cycle of a plant's life.

Why is dissection an important part of a biology curriculum? Which animals and/or plants should be included in biological studies?

The biology curriculum is designed to continue student investigations and deepen student understanding of the biological sciences.  In-depth study of the following concepts is included: the cell, the molecular basis of heredity, biological evolution, the interdependence of organisms, matter, energy and organization in living systems, and the adaptive responses of organisms. In biology the plants are animals that we need to learn about is and endangered species and the plants that show the students the different processes of biology.
http://www.ncpublicschools.org/curriculum/science/scos/2004/23biology

Define the different forms of community interaction: competition, commensalism, mutualism, predation, parasitism Give an example and a picture for each

There are different forms of community interaction which is competition, commensalism, mutualism, predation, and parasitism. This type of interaction is called mutualism this means that both species benefit from interaction. Another type of interaction is called commenalism is one species benefits and the one is unaffected. Competition is when each species is affected negatively. And both predation and parasitism is when one species benefits and the other has a disadvantage.

Ask a question on something confusing you?

The country projects are really confusing me because i do not know exact what to do and how to do it . I have read the directions on how to do the project but the directions are confusing me. I don't understand exactly how to use moodle and how to put pictures on the project its hard. I am not good with computers they really confuse me so when i have to do project i try the best i can to understand exactly what to do. And what i am going to do is first try it one more time then go and ask my teacher for help.

Compare and Contrast two biomes

A Desert biome is usally very hot during the day and chilly during the night. The biome has 10 inches of rain per year and it precipitation is mostly rainy. This biome is located around the equtaor and it covers1/5 of the earths surface. The plants that live in this biome usally store water and the animals get water from unusuall places. The plants and animals that live there adapt to extreme weather conditions. Some animals avoid heat because they are nocturnal and they also avoid heat by staying underground.

                                                                                                                                                                        A tundra biome is soil frozen most of the year and has 10 inches of rain per year. This part of land covers 1/5 of the earths surface and it is farest north. Some plants grow close together so they can protect themselves from the cold. The trees that grow on this land are very small . The plants and animals that grow and live here have to adapt to the extreme weather conditions. Because of the weather conditions there is a very short summer when the plants get to grow. The animals are able to adapt to the cold and the plants are small and grow close to the ground. The water is not avaiable most of the year.

                        

 

which level of the food pyramid is most important? support ur answer

There are different levels of the food pyramid and all of thems are use to show a cycle. The most important level of the food pyramid in the food pyramid is the lowest level grass. Grass is the most imporatnt level of the food chain grass is also called producers. The producers provide food for the consumers, they get the engery to produce by soil, sunlight and water. Without the producers the animals wouldn't survive as a consumers. Int th pyramid as a food chain, Grass in the most important level in the food pryamid.

There have been 5 major extinction events throughout history, are humans impacting the 6th? Why or why not?

The biologists have been researching and they have been loosing 30,000 species per year. there is little doubt that humans are the direct cause of ecosystem stress and species destruction in the modern world through such activities. The transformation of landscape , overexploration of species, pollution, and the introduction of the alien species are the human activities occuring. Began when the first modern humans began to disperse to different parts of the world about 100,000 years ago. The humans of this world are causes of the sixth extinction because they kill animals that have a large amount species but those species are getting lower and lower. Humans are one of the causes for the extinction becausee the lower the amount of species 30,000 per year.
http://www.actionbioscience.org/newfrontiers/eldredge2.html

describe the three types of selections :directional stabilizing and disruptive and give examples

Disruptive selection is the opposite stabilizing selection. In this case, individuals with an average value of the trait are affected most and individuals with values far from the average are affected least. However, the distribution following selection is much narrower, as particularly individuals with extreme values of the monitored trait and this selection is called stabilizing selection.If the population is present under unchanging conditions, there is usually an optimal value of each quantitative trait, for example optimal body length, this is an example of stabilizing selection. Directional selection leads to a change, not only in the average value of a particular trait, but also a change (decrease or increase in size) in the variability of the given trait in the population. A species gradually changes for example organisms either become bigger or smaller.
http://www.frozenevolution.com/selection-disruptive-stabilizing-and-directional

explain what mircoevoultion is? what are the threee ways variation occurs?

Microevoltion is simply a change in gene frequency within the population. Between one generation the next the frequency of gene pesticide resistance of population of crops pest increase. A change might come of because of natural selction favored the gene. Some nonrestiant genes mutated to the resistant version. There are three ways variation occurs when mutation alter the order bases of the nucleotides in DNA. Mutations are rare amd most mutations are harmful, but in some instances the new alles can be favored by natural selection. This can also happen during meiosis.
http://answers.yahoo.com/question/index?qid=20090920160125AA1tK3U

why is a fossil record hard to interpret?

There are a lot of reasons why a fossil record is hard to interpret . A fossil record might be hard to interpret because the animal is small. The interpretation is hard because of the painstaking sand that is covering the  fossil. When interpreting a fossil paleoblogists have to find all the fossils of the animal. Sometimes it can be hard to interepret the fossils and sometimes it can be easy. But whenn u interpret a large animal it can take a very long time but it is still hard because u have to make sure that u don't break the fossil. To be no value in interpreting patterns and trends of history of life and that we should except relatively complete record of details of evoluionary transtions within most lineages.

Why is evoultion a theory not a law?

Evolution is a theory not a law because Scientists define evoultion as a change gene pool that population changes over time. This rate of evolution is all that is required to produce the diversity of the living things as common ancestors. The thoery of evolution says that life originated, and evolution proceeds by random chance. Evolution is a thoery not a law because in science a theory is a well explained explanation for some aspect of the world. Evoulion is a well substained fact because it has been observed and it explains the sequence and arrangement of fossil record. As well as scientific thoery descent with modication species share a common ancestor. Theres a fact of evolution that species there is a variation within one kind of animal.

How DNA changed we invetigate crimes?

DNA has changed the way we investigate crimes in many different ways. It changes the way we investigate because now we have to make sure that the victim that your accusing has any relation to the crime. That's why the investigation process has changed because now the investigators have to send in a sample of the DNA to the science lab so that they can test it to see whose blood or hair is it . Now the DNA helps out and finds the person most reasonable for the crime that was committed. The DNA show the exact person or people that committed the crime and it helps the investigators know how to put into jail.  The two main types of DNA testing are Mitochondrial DNA testing and Y Chromosomes testing. Mitochondrial DNA testing can trace maternal ancestry and there are three regions that are tested. The regions are the coding region, HVR1, and HVR2. The Y Chromosomes testing can trace a person's paternal ancestry and the father is the one that passes his Y chromosomes to the son.

Last Blog Semiester One

My favorite activity that we did for Biology was the fingerprint lab. The fingerprint lab  is my favorite activity because we got to see how many different types of fingerprints are there. Also because is interesting to know what type of fingerprints that u have. To know that each finger of both hands has a different fingerprint types. The least favorite activity that we did in Biology is the kim chee lab. The kim chee looked really disgusting and the smell made me get really grossed out. The one thing that i would change is my understanding of the class and how to do certain things in the notebook that I don't understand that would be the only thing to change.