Tuesday, November 25, 2014

Monster Lab

y might one trait be more popular than others in a particular population? A trait may be more common in a certain type of group because of the way this group has changed to adapt. Example: Latin Americans are less sensible to the sun due to that their past family has needed to adapt to the sun. Is it possible for an offspring to have a phenotype that neither the father nor the mother has? It is possibel if someone before their parents has that same trait. Example: I can have green eyes like my grandfather, while neither of my parents have green eyes.

Friday, October 24, 2014

Summative Summary Questions

 1.Using and example, describe why a population could not  increase for ever.
Population wouldn't be to increase if its caring capacity did int have enough resources to supply to more population. Also a population cant grow if it has a disease or problem that can affect the population when growing.

2. What are 2 factors that determine whether a population increases or decreases. (Use each factor in a one-sentence example).
If the population of a certain animal changes, the population of many other species will end up affected, and this will make the new animals eat more prey and lower another one. Population can be changed by diseases (decrease), hunting (increasing many preys by decreasing predators)

Example: Hunters starting hunting humming birds, they ate worms and were eaten by foxes. This will decrease the population of humming birds, making the amount of worms increase and the foxes to lower, affecting other animals.

3. Give a reason why the human population of Earth has continued to increase so much for the past hundred years?
Human population has increased so much during this years because of medicine, we have found the cure to many diseases that used to change the number of years we lived,  curing lives and making us healthier, living longer life's.

Tuesday, October 21, 2014

Symbiosis

Symbiosis is interaction between two or more species, can often involve food.

Types of Symbiosis:

Mutualism: Is the way two organisms of different kind exist together and benefit each other,
Example: The rabbits in Australia cooperate with the birds in that area for food, the birds bring far away found food while the rabbits catch fast running animals.



Commensalism: Symbiosis witch only one benefits the other while the other one nor benefits or harm.
Example: While the Trees give nutrients to insects and plants, they dosent harm or benefit the tree in any way, it only benefits the insects and plants.


Parasitism: The relashionship between two or more organisms were one is being benefit while the other one is being harmed.
Example: Humans benefit the diseases when getting them but are harm themselves.

Symbiosis may affect the food chain  (we have been studying it in class) by lowering the resources that many animals use.

Friday, October 3, 2014

Food Web Discussion Questions

1. Why do we (as scientists) build food webs?
We build food webs to know how our actions against the environment will turn out to be, how what we hurt will influence other animals or elements of our ecosystem, it also shows us in a clear image how the animals that are in danger of extinction will make other differences in the environment when they are gone.

Example: The food web will show if we start killing the humming birds everything else in our environment will change, how the racoons that eat the humming birds will need to adapt. This animals will need to adapt by start eating other foods to stay alive.

2. Give an example of how one change might affect many other parts of an ecosystem.
A change affects everything near it, what it eats and what it is being eaten by. If the population of mice decreases the number of rabbits will also decrease since the snakes that use to eat the mice will need to start eating rabbits, if the population of mice and rabbits decreases, the number of crickets increases since not many animals will eat them. (It goes on and on)

3. Give an example of how one change in La Quebrada  might affect the rest of the ecosystem.

If we start cutting the grass in La Quebrada it will affect the whole ecosystem. The grass that was being eaten by the snails will not be able to feed them anymore so the snails will die, since the humming birds ate the snails, they will need to start eating berries and the ammount of berries will decrease killing many of the omnivore espicies.

Sunday, September 14, 2014

La Quebrada Report

                     

                                       La Quebrada Report

                                                          By: Luciana Garcia



                                     Introduction

  This few weeks we have been going up to study La Quebrada. We filled some tables about the trees, plants and animals. The tables contained information such as the height, common/scientific name, a drawing and other characteristics. We also made a quadrant were we counted all the plants of the same kind and we could get a picture about how many plants of that kind were in that area (estimated number).


 

                                      Plants

Some of the plants we found in La Quebrada were typical colombian forest plants, such as Tuno Amarillo ( Miconia biappendiculata), Black Cherry (prunus seratina) and Acacia Morada (Acacia Baileyara).  Many of the plants we saw were in the same  quadrant, that ment they grew a lot in that area. For founding the scientific/common name of each plant we brought leafs of each of the plants and  used a book for identifying them. Looking at many of the plants we found out that they had many characteristics that made them all similiar, many of them had similiar lines at the back like "veins", and other part had similiar colors and shapes.

                        

                                      Trees

In La Quebrada we found many kinds of trees wich we measured using special tools and we identified the ones we chose, we found cold climate trees like Amarraboyo (Meriania nobilis), Tibar Comun (Escallonia paniculata), Espandero (Myrsine coriacea) and many others. The trees in our quadrant and near that zone had many similaryties, many were had similiar heights, leafs/flowers, abundance and circumference.


                                        Animals

For the last time in this experiment we went up to the creek to get the information about the animals living in this ecosystem, we found many animals about different backrounds; Rosey Reds (Pimephales Promelas), Common Black Bird (Turdus merula), Bee (Anthophila), etc. We found very similiar animals, mostly insects   most of them are really dark colored insects, due to the cold climate I can assume that they need a certain temperature. The habit of each animal is different, The Rosey Reds since it lives on the creek it needs the fresh and clean water with a reasonable amount of food, it also needs a place to hide from birds and other animals. The Common Black Bird needs different things than the fish, or the bee, it needs shelter and food, fish, they can get fish from lakes, creeks and other water sources with life, they need to live near a water source to be able to have have food. The Bee needs to live in a place were  they have flowers to be able to do they work and pollinate the flowers and to be able to eat. There around 20,000 different espicies of bees, only about 50 live in these types of climates.



                                 Conclusion

In conclusion, this experiment taught me that the creek is really important to all the nature that lives on that area and that without it many especies wouldn't be able to live, I also noticed that every of the living organisms depends on another one to live and most of all the nature here needs the creek.





         
                                                              
    

                              

Saturday, August 23, 2014

Mapping Madness

I think all the maps were important but the most important one was the one about were the streams were located because all frogs NEED a stream where to live. I chose the areas where I thought were the ones because they had all the characteristics that the perfect tailed frog habitat has, it isint on a road, it is on a stream, a old forest and a elevated place. Many of the places that didint have a road and had a stream were on a foreast that was less than 40 years old and it had a not so high elevation.




Thursday, August 21, 2014

Experiment

My hypothesis showed me that there is no way to know the exact real size of a leaf without measuring it, it also showed me that there many diferent sizes of leafs even if they are from the same tree. I also noticed that all leafs of a same tree are diferent sizes and shapes. If I were to do the expiriment again i would probably change the variables to be able to choose another more celar hypothesis.

Saturday, August 16, 2014

Are Zombies Alive?

If Zombies existed they would probably be alive, they have many of the caracteristics of a living organism, Zombies have feelings, that they respond to, they also eat and get ridd of waste.

Wednesday, August 13, 2014

The River Otter is a great swimmer and it can hold its breath up to 8 minutes.