Archive for April, 2012

Bicycle route for the Ebro River

Last Tuesday we went to ride with bike for the Ebro River and Bruil Park. First we went to the High School, because there we started the tour. Then we went to the Bruil Park to see some important trees that in this park there are a lot of trees that we don’t have in other parks of the city. There we did some tests to know what tree was there. Later, we went to the Ebro River for the Huerva River. We rode to the Expo entry and there we stopped to relax a few minutes. There some groups started the expositions. There talk about the Ebro River. There we ate something and Alfonso broke the bike. Then we went for the Water Park, the new park of Zaragoza, that has a good roads to ride with the bike. We did a route for the park and then we went to the Galachos road to end the expositions. When we stopped in the site that we did the exposition, we started my exposition with Belen, Mª Eugenia, Alex, Alfonso and Adrian. Our exposition was about the Greenhouse effect and Climate Change, a good topic. We explained the main important things of these topics, and then other group started their exposition. They spoke about the Acid Rain, and the Biodiversity. Then we went to our house. We went to Helios all, but there we could go that we wanted.



A ride by the river

First of all we ride from the High School to the Parque Bruil, we stopped there and Fernando told us to do three tests, the first consists to search the trees that puts the name below. The second was about searching six trees pointed in the map and the third and last to run to our tree name group and make a photograph of all us with the tree. We saw this trees: Encina, arbol del amor, ciruelo rojo, olivo, cipres, acacia tres espinas, cedro, platano de sombra, ailanto… After this we ride to the river and from there we ride to the expo, we cross the Puente de Hierro and from there to Helios and then we continued riding along the Ebro riber near his water. When we arrived to the expo the path was awash by the Ebro and some of us decided to swim with the Siluros with the fear to be eaten by them… In the Expo we dried up and some groups spoke about The Ebro river, we ate someting and continued riding near the river by the Parq of the water and from there we ride by a track to a place full of condoms and there on the tree of the love we spoke about Biodiversity and about climate change and Acid rain… And from there we ride back to home…

Un saludiko

Flora Web and remember

José Luis Garde recommended us this article by M. Bernal:

De higos a brevas, polinización de las higueras.

Picture from: Manuel Bernal - Fotografía de Naturaleza

Tomorrow we have the cycling visit to Bruil Park and Ebro River, do not forget to take a photo camera and a tree identification guide with you.  It seems that it will be cloudy but not rainy.

See you.


1.-Explain how the evolution has happened here? What are the last ones with the first and
between the last ones? Try to guess the utilities of the evolution in the case.

That specie start to develop, different parts of the body change like the trunck; it grows
or its size increase depending in how they use it. Also that happened with the colmillos,
becsuse they can use it for example for fight with others or to get the food from trees.

5. Explain the evidence about fossils.

They are an evidence because you can see the skeleton of the past

animals and how they were similar to the actual ones,

You can also see how they had change and the new characteristics

that had appear so you can see how they had adaptated.

The question

Question from Álvaro:

5.Why we don’t name the Natural selection theory by the name of Darwin and…?? Say the
name of the other and why.




My proposed question:

What are the main five points of Darwin evolution theory?

  1. Variation.
  2. Overpopulation.
  3. Competition.
  4. Survival of the fittest.
  5. Evolution

My solved question:

Who was wrong in his theory (Lamark or Darwin)? Why?

Lamark because he said that evolution occur due to the use or disuse of organs and this theory wasn’t true because if a bird didn’t use the wings this bird will not lose the wings in the next generation.

Zaragoza Parks

Tomorrow MrJosé Luis  Garde Murillo  is coming to teach us about the parks and the trees in our city. He is the author of this wonderful web page that I recommend u to visit.

We will pay a special attention to the trees present in the Bruil Park that we will visit in a bicycle excursion nest twesday.
Image from Zaragoza Milenaria.
Wonderful and magic Celtis australis in Bruil Park- Zragoza-Almez , latonero or litonero in local language.


My best question is:

Why are there more dark moths in dark forests that bright ones? Because of adaptation. The brighter ones are seen more easily and eaten by predators and can’t survive.

And the best question of blas is:

What is required to new species to form? Isolation



1-Name the differences between anologous and homologous organs.Give a example of each.
1. Organs similar in shape and function but their origin, basic plan and development are not the same.
Example: Wings of butterfly bird and bat.
2. Such similarities are because of convergent evolution for adaptation to a common condition.
Example: Flying
1. Organs dissimilar in shape, size and function but their origin, basic plan and development are similar. Example: Fore limbs of frog, reptile, birds and mammals.
2. Such differences are due to divergent evolution or adaptation for varied conditions.
Example: Leaping in frog, crawling in reptiles, flying in birds, running and grasping in mammals.


The organism don’t evolve are the individuals which change.
Individual organisms don’t evolve. Populations evolve. Because individuals in a population vary, some in the population are better able to survive and reproduce given a particular set of environmental conditions, this are the fittest one according to Darwin’s Theory.

My  proposed question:

evidences of evolution. give 4:

– fossils


– biochemistry

– comparative embrology

My solved question:

when was published the book: on the origin of species?

24 of november of 1859