Tuesday, 22 April 2014
ingeniería genética
Saturday, 12 April 2014
Story of stuff
We have a problem with stuff. With just 5 % of the world`s population, we are consuming 30% of the world`s resources an creating 30% of the world`s waste. If everyone consumed at U.S. rates, de would need THREE TO FIVE PLANETS.
In December 2007, Anni Leonard put a 20 minutes movie about the way de make, use and throw away stuff in the internet.
In 2014, The Story of Stuff Project is launching campaigns to reduce plastic pollution, grow the sharing economy and end political corruption.
Thursday, 10 April 2014
Tuesday, 8 April 2014
Vertebrates I
1.
Complete
the definitions in your notebook:
a)
Fusiform: The body
is____________________________________
_______________________________________________________
b)
There
are two groups of fish: _____________
and ______________
2.
For
each of the following words, match the word with the correct definition. You only have to match the letter with the number.
a) Lateral line system
b) Operculum
c) Swim bladder
d) Poikilotherms
e) Oviparous
f)
Viviparous
g) Hibernate
h) Ovoviviparous
i)
Fangs
j)
Carapace
1.
Long,
pointed teeth, connected to glands that produce poison.
2.
Hard
cover that protects the gills.
3.
Method of animal reproduction in which
eggs are laid by the female and develop outside the body.
4.
It’s
a line running lengthwise down each side from the vicinity of the gills to the
base of the tail which acts as a sensorial organ to detect vibrations.
5.
In animals, a method of reproduction in which the
embryo develops inside the body of the female from which it gains nourishment.
6.
Is an animal whose internal temperature
varies along with that of the ambient environmental temperature.
7.
A sac of gas which fills up and empties so
the fish can surface and dive easily.
8.
A bony
or shield covering the back or part of the back of an animal (as a
turtle or crab)
9.
To pass the winter in a dormant or
inactive state, with metabolism slowed down to save energy.
10.
Method of animal reproduction in which fertilized eggs
develop within the female and the embryo gains no nutritional substances from
the female.
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