Blog #16 Reflect on your semester and year in biology What were your successes? What were your failures?
What did you learn that you will never forget?
I believe that my successes in this semester were the Online Quizzes and the Blogs. I was able to keep up on this and this was one of the bigger percentages of my grade.
I also think that the Projects of this year we successful for me, they we very educational and I enjoyed doing all of them.
My Failure of this year was my notebook. I had a hard time keeping up with all of the book work and vocabulary that was necessary to get a good grade on my notebook.
Things that I learned this year that I will never forget (especially in other classes) is to write everything that I have done in the class day, and to write all assignments,projects,etc. that are due in the week. If I would have done that this year I probably would have had more success in your class because I would have been more aware of the work due for my notebook.
5.31.2011
Blog #15 (Comparisons)
Blog 15 Compare two of the organisms that we have dissected Discuss at least 2 similarities and 3 differences.
I will be comparing the Crayfish and the Grasshopper.
Similarities
Both the Grasshopper and the Crayfish have Antennas
Both have ExoSkeletons that protect its internal organs
Differences
Crayfish live in water, while Grasshopper live on land
Grasshoppers have no pinchers (chelipeds) like the Crayfish
The Grasshopper has wings, and the Crayfish does not.
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| Body of Crayfish |
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| Body of a (VERY LARGE) Grasshopper |
Blog #14 (Dissection&Humans)
Blog 14 Which specimen that we have dissected so far seems most like humans? Why?
I believe that the frog is the closest specimen to humans that we have dissected this year. Like the human the frog had very similar organs (Heart,Lungs,Kidneys,Bladder,Anus,Arms,Legs,Backbone). Also they have a similar digestive system(Small Intestine, Large Intenstine, Duodenum, Gail Bladder, Stomach, Pancreas). Also they have a similar Respiratory, Circulatory systems (Lungs, Heart, Veins, Arteries).
I believe that the frog is the closest specimen to humans that we have dissected this year. Like the human the frog had very similar organs (Heart,Lungs,Kidneys,Bladder,Anus,Arms,Legs,Backbone). Also they have a similar digestive system(Small Intestine, Large Intenstine, Duodenum, Gail Bladder, Stomach, Pancreas). Also they have a similar Respiratory, Circulatory systems (Lungs, Heart, Veins, Arteries).
5.05.2011
Blog #13 (Dissection)
Blog 13 What was most interesting about this week's dissections?
The Crawfish i thought was interesting because it has such a hard exoskeleton and so many appendages. The exoskeleton was very similar to an exoskeleton that I would encounter on an insect. Also that the crawfish had exact symmetry with its organs,etc. you could cut the crawfish right down the middle and it can be the same on both sides. The gills on the crawfish are similar to the book lungs of an insect, this is further example that a insect an a crawfish are arthropods.
4.28.2011
Blog #12 (Worm Dissection)
Blog#12 What surprised you from the worm's dissection?
- What surprised me from the worm dissection was that a once living organism can function with such small organs, digestive systems, etc.
- It also surprised me that there were little to no fluids inside of the worm while I was dissecting it.
- Also the organ system is very simple, and not as complex as a human being organism.
4.18.2011
Blog #11 (Generations)
Blog #11
Get a picture of alternation of generations put it in your blog and explain how it relates to plants
Starting with the diploid plant, its cells under go Meiosis, this reduces the Diploid cells to Haploid cells. These Haploid cells do not fertilize other Haploid gametes and therefore undergo further Mitosis to yield a Haploid plant. As Mitosis continues these Haploid cells can fertilize/ be fertilized by Haploid gametes. This yields a Diploid cell which under further Mitosis yields the Diploid plant we started with (2 generations prior).
Get a picture of alternation of generations put it in your blog and explain how it relates to plants
4.14.2011
Blog #10 (Dissecting)
Why is dissection an important part of a biology curriculum? Which animals and/or plants should be included in biological studies?
Dissection is defined as the process of disassembling and observing something to determine its internal structure and as an aid to discerning the functions and relationships of its components. I believe that dissections are vital to Biology because, we are allowed to see the inside of the organs, etc that we couldn't see with the normal MRI. By dissecting a dead animal you are able to examine the organs and see how the animal died, which can help use see if it had any disorders that led to the death
I believe that ANY animal should be included in Biological studies, even endangered species. I am not suggesting killing the animal, but after the animal is dead you should be allowed to be allowed to dissect the animal for studies. I believe this because Biology isn't limited to any one species, also because of the fact that animal facts are based on animal testing. All shampoos, cosmetics, and pharmaceutical drugs are all made possible and are ensured as safe for human use, by the testing of the animals.
Dissection is defined as the process of disassembling and observing something to determine its internal structure and as an aid to discerning the functions and relationships of its components. I believe that dissections are vital to Biology because, we are allowed to see the inside of the organs, etc that we couldn't see with the normal MRI. By dissecting a dead animal you are able to examine the organs and see how the animal died, which can help use see if it had any disorders that led to the death
I believe that ANY animal should be included in Biological studies, even endangered species. I am not suggesting killing the animal, but after the animal is dead you should be allowed to be allowed to dissect the animal for studies. I believe this because Biology isn't limited to any one species, also because of the fact that animal facts are based on animal testing. All shampoos, cosmetics, and pharmaceutical drugs are all made possible and are ensured as safe for human use, by the testing of the animals.
Blog #9 (Community Interaction)
Define the different forms of community interaction: competition, commensalism, mutualism, predation, parasitism Give an example and a picture for each
Competition: contest between individuals, groups, animals, etc. for territory, a niche, or a location of resources. Competition occurs naturally between living organisms which co-exist in the same environment.
mutualism:is the way two organisms biologically interact where each individual derives a fitness benefit
predation:describes a biological interaction where a predator (an organism that is hunting) feeds on its prey (the organism that is attacked)
parasitism: is a type of symbiotic relationship between organisms of different species where one organism, the parasite, benefits at the expense of the other, the host.
Competition: contest between individuals, groups, animals, etc. for territory, a niche, or a location of resources. Competition occurs naturally between living organisms which co-exist in the same environment.
Commensalism: a class of relationship between two organisms where one organism benefits but the other is neutral (there is no harm or benefit).
3.24.2011
Blog #8 (What I've Learned)
Blog 8 Your choice talk about something you learned or ask a question about something that is confusing you
In this semester I have learned about Natural Selection. Natural Selection is the process by which traits become more or less common in a population due to consistent effects upon the survival or reproduction of their bearers. It is a key mechanism of evolution.
An example of Natural Selection are the Finches. The finches were birds that can have long or short beaks. The finches had to get thier food by poking thier beak through holes in trees and eating bugs inside beaks. The longer beaked finches were able to survive because they were able to get food through the holes, while the shorter beaks could not get food and were not able to reproduce.
In this semester I have learned about Natural Selection. Natural Selection is the process by which traits become more or less common in a population due to consistent effects upon the survival or reproduction of their bearers. It is a key mechanism of evolution.
An example of Natural Selection are the Finches. The finches were birds that can have long or short beaks. The finches had to get thier food by poking thier beak through holes in trees and eating bugs inside beaks. The longer beaked finches were able to survive because they were able to get food through the holes, while the shorter beaks could not get food and were not able to reproduce.
3.17.2011
Blog #6 (Food Pyramid)
Blog #6 Which level of a food pyramid is the most important? Support your answer
Blog #7 (Biomes)
Compare and contrast two biomes describe them in detail include pictures of plants and animals you are liklely to see.
Marine Layer
Marine regions cover about three-fourths of the Earth's surface and include oceans, coral reefs, and estuaries. Marine algae supply much of the world's oxygen supply and take in a huge amount of atmospheric carbon dioxide. The Marine Layer is host to animals such as fish, turtles, etc.
Desert Biome
Deserts cover about one fifth of the Earth's surface and occur where rainfall is less than 50 cm/year. Most deserts have a considerable amount of specialized vegetation, as well as specialized vertebrate and invertebrate animals. The desert is host to animals such as Lizards, Reptilles, Amphibians, Insects.
One thing that the both have is that they both host animals that are adapted to extreme climates and conditions. They both have varied temperature variation. The Marine Layer holds alot more organisms and the Desert has alot more Carbon Dioxide.
Marine Layer
Marine regions cover about three-fourths of the Earth's surface and include oceans, coral reefs, and estuaries. Marine algae supply much of the world's oxygen supply and take in a huge amount of atmospheric carbon dioxide. The Marine Layer is host to animals such as fish, turtles, etc.
Desert Biome
Deserts cover about one fifth of the Earth's surface and occur where rainfall is less than 50 cm/year. Most deserts have a considerable amount of specialized vegetation, as well as specialized vertebrate and invertebrate animals. The desert is host to animals such as Lizards, Reptilles, Amphibians, Insects.
One thing that the both have is that they both host animals that are adapted to extreme climates and conditions. They both have varied temperature variation. The Marine Layer holds alot more organisms and the Desert has alot more Carbon Dioxide.
3.03.2011
Blog #5 (Extinction?)
Blog #5 There have been 5 major extinction events throughout history, are humans impacting the 6th? Why or why not?
Yes I believe that humans are impacting the 6th major possible extinction. Humans are producing Green House gases have lead to global warming that will impact the 6th extinction. If the Polar Ice Caps begin melt this will have a dramatic event of the conveyor belt flow of warm water and cold water which cycles through the ocean. This disruption will eventually lead to a Ice Age, which will dramatically impact the plant life, and by consequence animal and human life.
Yes I believe that humans are impacting the 6th major possible extinction. Humans are producing Green House gases have lead to global warming that will impact the 6th extinction. If the Polar Ice Caps begin melt this will have a dramatic event of the conveyor belt flow of warm water and cold water which cycles through the ocean. This disruption will eventually lead to a Ice Age, which will dramatically impact the plant life, and by consequence animal and human life.
2.24.2011
Blog #4 (Selection)
Blog # 4 Describe the three types of selection: directional, stabilizing and disruptive and give an example of each.
Directional:a pathway of natural selection in which one uncommon phenotype is selected over a more common phenotype. An example would be Breeding
Stabilizing:a type of natural selection in which genetic diversity decreases as the population stabilizes on a particular trait value. An example of this would be human baby birth weight
Disruptive describes changes in population genetics in which extreme values for a trait are favored over intermediate values. An example would be Rabbits
Directional:a pathway of natural selection in which one uncommon phenotype is selected over a more common phenotype. An example would be Breeding
Stabilizing:a type of natural selection in which genetic diversity decreases as the population stabilizes on a particular trait value. An example of this would be human baby birth weight
Disruptive describes changes in population genetics in which extreme values for a trait are favored over intermediate values. An example would be Rabbits
2.17.2011
Blog #3 (MicroEvolution)
Blog #3 Explain what microevolution is? What are the three ways that variation occurs?
Microevolution is the smallest scale of evolution, that occurs over a number of generations. The gene pool is changed such that a particular allele will result in a higher likely hood of survival for the organism. These alleles would then be passed down altering the future population.
The three was that the variation occurs:
Microevolution is the smallest scale of evolution, that occurs over a number of generations. The gene pool is changed such that a particular allele will result in a higher likely hood of survival for the organism. These alleles would then be passed down altering the future population.
The three was that the variation occurs:
- Directional Selection
- Stabilizing Selection
- Disruptive Selection
Blog #2 (Fossils)
Blog # 2 Why is fossil record hard to interpret?
It is hard to interpret fossils because there are so many gaps in fossil records due to the size of the earth, and the difficulty of finding every revolutionary link. When you find dramatically evolved fossils it is very difficult to determine how they evolved to the current population.Gaps in fossils also make it harder to theorize how the fossil evolved to its current population.
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| The Fossil of a Moth |
It is hard to interpret fossils because there are so many gaps in fossil records due to the size of the earth, and the difficulty of finding every revolutionary link. When you find dramatically evolved fossils it is very difficult to determine how they evolved to the current population.Gaps in fossils also make it harder to theorize how the fossil evolved to its current population.
2.03.2011
Blog #1 (Evolution)
Blog #1
Why is evolution a theory and not a law?
A scientific theory summarizes a hypothesis or group of hypotheses that have been supported with repeated testing.
A Law generalizes a body of observations. At the time it is made, no exceptions have been found to a law. Scientific Laws explain things, but they do not describe them.
Evolution is considered a theory and not a law because overtime a species is changing to adapt to its lifestyle. Evolution is based on Natural Selection. It is a theory because it can not be proven or dis-proven.
Why is evolution a theory and not a law?
A Law generalizes a body of observations. At the time it is made, no exceptions have been found to a law. Scientific Laws explain things, but they do not describe them.
Evolution is considered a theory and not a law because overtime a species is changing to adapt to its lifestyle. Evolution is based on Natural Selection. It is a theory because it can not be proven or dis-proven.
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