ACTIVIDADES SEMANA SANTA-1ºBILINGÜE

Watch this video in the internet and answer the following questions:
http://www.youtube.com/watch?v=UFKHsaowAOA

1.-What is the main difference between vertebrates and invertebrates?
2.-Define: endoskeleton, ectotherm and endotherm.
3-Which are the different groups of vertebrates?
4.-Groups of fish: a_____________b___________c_____________
5.-Where do anphibians live?
6.-Explain metamorphosis in anphibians.
7.-Describe reptiles.
8.-How many species of birds are in the world?
9.-Write the main characteristics of birds.
10.-Write two or three characteristics of mammals.
Write the questions and the answers in your notebook and bring them to the first class after The Holy Week (25th of April)