ÁLBUM DE FOTOS de tejidos animales.

En organismos unicelulares, la propia célula lleva a cabo todas las funciones vitales. Es funcionalmente independiente.

Sin embargo, los organismos pluricelulares presentan varios niveles de organización. Las células realizan funciones específicas y también trabajan juntas para beneficio del organismo completo. Las células son dependientes unas de otras.

Los organismos pluricelulares pueden tener los siguientes niveles de organización, enumerados desde el más simple, al más complejo.

Células --> tejidos --> órganos --> aparatos/ sistemas --> organismo.

Algunos organismos pluricelulares no tienen tejidos (Reino Hongos, algas del Reino Protoctista). Otros tienen todos los niveles de organización (la Clase Aves en el Reino Animal).

En el siguiente álbum se muestran distintos tejidos humanos, cada uno realiza una función específica

Un mundo material.

Presentación sobre la materia y sus propiedades.

La materia y sus propiedades. from irenebyg

Test sobre la materia.

Busca información en internet en caso de tener alguna duda. Puedes utilizar el buscador del blog. ¡¡Suerte!!

Matter and its properties

Check this ppt about matter.




After studing matter, complete the following test.

Biotic relations PPT

Biotic relations from irenebyg

Just for educational purpose.
Anaya 2 ESO
Oxford CLIL 2 ESO

Respiratory system. TEST.

Once upon a time: the respiratory system.



Test.
Write your name and answer the questions. Good luck!

Sexual reproduction in the Animal Kingdom.

To survive and reproduce, all living organisms must adjust to conditions imposed on them by their environments. An organism's environment includes everything impinging upon it, as well as everything that is affected by that organism. Conformity between an organism and its environment constitutes what biologists call adaptation.

TASK 1
You have been asked to investigate the unusual reproductive habits of Emperor penguins. Find out about the difficult conditions in which they reproduce. Include the following:
• Describe their habitat conditions.
• Is this external, or internal fertilization? Why do you thing they carry out this type of fertilization?
• When do Emperor penguins reproduce?
• Do they make nests? Why?
• Who has the easier job, the male or the female?

Resources:
Source 1
Source 2
Source 3
Source 4
Source 5
Source 6

TASK 2
Imagine you are a fish. One of your best friends is a male anglerfish. He has just met the female anglerfish of his dreams. Tell him what to expect on his honeymoon. Explain what is so unusual about reproduction in anglerfish.

• Describe their habitat conditions.
• Is this sexual, or asexual reproduction?
• Why do you thing they carry out this type of reproduction?

Resources:
Source 7
Source 8
Source 9

Living things II. Biodiversity.

The term “biodiversity” refers to the variety of life forms in a habitat, whether it’s a local environment or an entire planet. Most of the species making up our planetary biodiversity are still poorly studied or completely unknown.

Check the presentation about biodiversity on Earth. Do you think it has been always the same?

Biodiversity on Earth from irenebyg

Why is biodiversity son important? Why should we care about a single species? We have many more left... Well, this video explains causes and consequences of bees extinction.




All organisms on Earth: biodiversity.

Think about a bacterium and a frog. They don't resemble each other, but both are living things. Remember: all organisms share three characteristics:

• 1. We carry out 3 vital functions.

• 2. We are made up of the same chemical substances.

• 3. We are made up of cells.

But, as we said, there are other many differences between them too.

As we are many species on Earth, humans have classify all organisms in groups, from the "biggest" one (the biggest one you are studying) KINGDOM, to the smallest one SPECIES.

Today we are learning some characteristics of living things, and how we classify them.

TAXONOMIC SYSTEM

What are the main taxonomic groups?
Use Wikipedia to find out what taxonomy is.

--> KINGDOM
-->
-->
-->
-->
-->
--> SPECIES

Write an example from Animal kingdom to Homo sapiens species.

What do we use to include organisms in one group or other?