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We have worked hard and finally we have achieved our objective. We are so happy to have finished the lessons. Our teacher has taught us lots of things and helped us.

And now it’s our turn, let’s go enjoy our holidays!! Happy summer! See you all next year!! =)


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Energy classification.

The energy classification is divided into two groups: renewable and non renewable energy.

– The renewable energy resource is energy extracted from natural sources like biomass, geothermal heat, tides, sun, wind which are naturally replenished. They can be replaced and generated with more “frequently.”

– The non renewable energy resource is a natural resource which cannot be generated, produced or use without caring it. Once it has finished, there isn’t remaining. They are consumed faster than the nature creates them.


This video shows us what solutions are in process and some of the effects which cause the non renewable energy resources. The video is until 1:44 minutes and after you can know who has done it.

Here i let you a little curious sudoku of energy: http://www.eia.gov/kids/energy.cfm?page=energy_sudoku


1. Where exactly does most our energy comes from?

2. Which are the most common problems of these renewable energies?

Renewable: http://en.wikipedia.org/wiki/Renewable_energy

Non renewable: http://en.wikipedia.org/wiki/Non-renewable_resource

Games: http://www.eia.gov/kids/index.cfm


The black panther.

The black panther has got emerald eyes and has an incredible adept.  They are usually in India, South Africa, Java and Malaysia.  They can be in hot climates and not cold but cooler. They have lots of enemies in the jungle like the lions, the tigers, the crocodiles, the pitons, the wild dogs and the mandrilles.

But the most dangerous of all is the human. The humans hunt them because of a sport and then they sell the black panther skin.

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Mutualism is the way two organisms biologically interact where each individual derives a fitness benefit.

It is a subdivision of intraspecific interaction. One specie needs the other but can live without it. Both of them benefit from the other. For example, a buffalo lets the oxpecker put on him to eat the flies and release from them, but the bird also benefit because can eat something that seem to it to be good. Let’s see the video of a enjoyed way:


I have taken the information from the lesson and the first part (the definition) from wikipedia.

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They are species that are introduced by an artificial way in an ecosystem. This species can cause some problems like the extinction of species from their own place and also can cause several plagues. We can see the following examples:


It is found in some parts of Spain. It comes from southeast Russia.  Its name is because a stripped pattern on its shell. It has the shape of a fingernail, but sometimes can grow to 5 cm. It’s usually attached to rocks or others solid objects.


They are found in river Ebro but they are more diverse in South America, Asia and Africa and they live in freshwater environments and coastal waters. Their name come from the barbells which have the cat’s whiskers. Some of them have an armour-plated and they haven’t got scales. Catfishes are of considerable commercial importance because many of them are farmed or fished for food.

We have got this information from wikipedia.


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Comparative anatomy

It’s the study of similarities and differences in the anatomy of organisms. It’s linked with the evolution of species.

There are three main concepts:

– Homologous structures: a similar structure in different animals because of common descent. For example a bat has a similar structure that a bird.


– Analogous structures: structures similar in different organisms because they evolved in a similar environment. An example is the streamlined torpedo body shape of porpoises and sharks. So even though they evolved from different ancestors, porpoises and sharks developed analogous structures as a result of their evolution in the same aquatic environment.

– Vestigial structures: are in a degenerate, atrophied, or rudimentary condition. An example of this: in whales, can find small vestigial leg bones deeply buried within the back of the body. These are remnants of their land-living ancestors’ legs.


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DNA discovering.

In 1953, James D. Watson and Francis Crick suggested the correct model of DNA structure, that is known nowadays, in the journal Nature.


These images are: James D. Watson, Francis Crick  and Rosalind Franklin.

Rosalind Franklin made part of the DNA discovering with a determinate role and processes. After, her boss took the “proyect” and showed to James and Francis. 

In 1962, she was choosen to the Nobel Prize in Physiology or Medicine but she had complications arising from ovarian cancer and the Prize was for James and Francis.

She died at 37.



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